European Enlightenment

• 1680-1790
• a product of the Protestant Reformation
• intellectual "Age of Reason"
• world view change from religious to secular
• skepticism & religious skepticism
• pursuit of happiness: focus on the human condition
• diffusion of knowledge: books, pamphlets, publications, libraries, universities

Key dates

• 1648: end of the 30 Years War (religious dispute was a core cause of the war)
• 1680: publication of Isaac Newton's Principio Mathematica
• 1688: Glorious Revolution in England
• 1682: Haley's comet & Bayle's "Reflections on Comets"

Enlightenment definitions

• disenchantment of the world
  • from Max Weber
  • attacking superstition
• political reform
  • applying reason to public policy
  • infrastructure projects
  • penal & criminal law enforcement and reform
    • vagrants and beggars

Enlightenment core ideas

• truth can be found through investigation
• self-government
  • Glorious Revolution: William of Orange takes power
    • transfer of power based on the public good and not dynastic divine rule

Enlightenment projects

Diderot's "Encylopedie"

• a tremendous project to catalog human knowledge
• = an exercise in "freedom of thought"
• had 28 volumes, 71,818 articles and 3,129 illustrations
• started by Denis Diderot and Jean le Rond d'Alembert
• goals:
  • Diderot wrote that the purpose of the project was ""to change the way people think"
  • to disseminate (spread) knowledge across economic classes
  • to give more common people access to practical knowledge, especially mechanics
• it was the first encyclopedia to have independent contributors
• some of the ideas presented in the encyclopedia were considered radical
  • the French government banned it in 1759
  • the work supported religious freedom
  • many entries challenged religious doctrine
    • under the idea that knowledge is provable, the work treated religion as also subject to proof
    • the work attacked mysticism and superstition

taxonomy of human knowledge

Fig. 3: "Figurative system of human knowledge", the structure that the Encyclopédie organised knowledge into. It had three main branches: memory, reason, and imagination.

• Enlightenment's outlook was that all human knowledge and the world and universe around it can be understood rationally
  • therefore, such knowledge can be organized logical
• the Encyclopedia organized knowledge into three main categories:
  • memory (factual knowledge)
  • reason (logic, deduction)
  • imagination (arts, literature)

Enlightenment thinkers

entry structure

=== section title: first, last, alphabetical by last name

• dates
• core ideas
• works

Cesare Beccaria

• 1738-1794
• Italian thinker, concerned with prison reform
  • wrote On Crimes and Punishments
  • condemned torture and the death penalty
• considered the "father of criminal justice" or law

Pierre Bayle

• core ideas
  • religious skepticism and toleration
• 1682 Reflections on Comets
  • Hailey's comet as natural phenomenon and not a mysterious event
  • challenged superstition
• religious toleration

Denis Diderot

• author, editor of l'Encyclopedie
• self-exiled to Switzerland to carry on the project in secret
• Diderot was a follower of Voltaire and deisms (that God exists but not as a distinct entity)
  • he later adopted materialism and atheism
  • he believed that religious truths should be subject to the same standards of proof as any other knowledge
• he also wrote plays and was a prominent art critic
• overall, Diderot's thoughts are expressed in these questions, as proposed by one of his biographers, Andrew S. Curran:
  • Why be moral in a world without god?
  • How should we appreciate art?
  • What are we and where do we come from?
  • What are sex and love?
  • How can a philosopher intervene in political affairs?
• Diderot quotation:
  • "posterity is for the philosopher what the 'other world' is for the man of religion."

David Hume

• the problem of induction
  • how do you know that the sun will rise tomorrow?
  • Greek verwion of hte question >>> todo
• reason will always be the slave of passion
• in 2020 Hume cancelled by modern "cancel culture"
  • Hume wrote a racist tract, "comments on matters of race" that posited that blacks were inferior beings
  • in 2020, Edinburgh University removed his name from a building on campus

Gotthold Ephraim Lessing

• 1729-1781
• German writer and critic
  • influenced German literature
  • promoted religious tolerance and freedom
• works:
  • Nathan the Wise, a play on religious tolerance

click EXPAND for details on Nathan the Wise and the "parable of the rings"

• • • a play about Nathan, a Jewish merchant who meets Saladin the Great, the Ottoman sultan and thus a core Islamic leader
    • Saladin asks Nathan which of the Abrahamic religions is the "true religion"
      • Abrahamic religions are Judaism, Christianity and Islam (in order of historical appearance)
    • Nathan avoids the question trap by answering with the "parable of the ring"
      • = a story about a magical ring that empowers the bearer God's approval ("pleasing to God")
        • i.e., the bearer's religion is the "true religion"
      • it is passed on by generation, until a father can't decide which of three sons to give it to
        • so he creates two exact copies and gives each son a ring
      • afterwards, the sons argue over who owns the actual ring
      • they take their dispute to a wise man who tells them
        • that perhaps all three rings are replicas, they cannot know
        • therefore, if each acts in such a way as God will be pleased, it would show that each ring has the magical power
        • i.e., God doesn't judge by one's religion but by one's actions

John Locke

Portrait of Locke by Godfrey Kneller in 1697

• 1632-1704
• key Enlightenment thinker
• known as "Father of liberalism"
• key ideas:
  • "natural law" and "natural rights"
    • that people are born with certain rights and that "natural" laws pre-exist governments (which creates "positive law")
  • the "social contract"
    • the government and the governed must have a "contract" that protects and defines the rights and responsibility of both
    • people have the natural right to protect their own "life, health, liberty, or possessions"
      • therefore, protecting those rights is a primary purpose of government (its contract)
  • "consent of the governed"
  • separation of powers
    • Locke envisioned separate executive, legislative and judicial branches
    • governments are legitimate only if they have the "consent" or permission from the "governed" (the people)
  • the "clean slate" or "tabula rosa"
    • that all humans are born equal and learn from their environment and experiences
    • he promoted proper education of children when young
      • otherwise, prejudices, fears, and superstitions will be "locked in" to their memories
  • separation of church and state
  • property
    • Locke argued that property is a natural right and is necesssary for happiness
  • supply and demand or "price threory"
    • Locke developed the economic / monetary theory of the relationship between supply and demand
• works:
  • "A Letter Concerning Toleration" 1689
  • "Two Treatises of Government" 1689-90
  • "Some Thoughts Concerning Education" 1693
  • "1695. The Reasonableness of Christianity, as Delivered in the Scriptures" 1695
• quotations:
  • "What worries you masters you."

Montesquieu

• 1689-1755
• full name Charles-Louis de Secondat, Baron de La Brède et de Montesquieu
• French philosopher and political thinker
• most clearly articulated the idea of "separation of powers"
• studied the past to determine the best forms of government
  • developed a theory of history as driven by conditions and not specific events (see quotation below)
• works:
  • The Spirit of the Laws 1748

click EXPAND to see excerpts from "The Spirit of the Laws" on separation of powers:

In every government there are three sorts of power: the legislative; the executive in respect to things dependent on the law of nations; and the executive in regard to matters that depend on the civil law.

By virtue of the first, the prince or magistrate enacts temporary or perpetual laws, and amends or abrogates those that have been already enacted. By the second, he makes peace or war, sends or receives embassies, establishes the public security, and provides against invasions. By the third, he punishes criminals, or determines the disputes that arise between individuals. The latter we shall call the judiciary power, and the other, simply, the executive power of the state.

— The Spirit of the Laws, Book XI[20][21]

When the legislative and executive powers are united in the same person, or in the same body of magistrates, there can be no liberty; because apprehensions may arise, lest the same monarch or senate should enact tyrannical laws, to execute them in a tyrannical manner.

Again, there is no liberty if the judiciary power be not separated from the legislative and executive. Were it joined with the legislative, the life and liberty of the subject would be exposed to arbitrary control; for the judge would be then the legislator. Were it joined to the executive power, the judge might behave with violence and oppression.

There would be an end of every thing, were the same man, or the same body, whether of the nobles or of the people, to exercise those three powers, that of enacting laws, that of executing the public resolutions, and of trying the causes of individuals.

— The Spirit of the Laws, Book XI

The executive power ought to be in the hands of a monarch, because this branch of government, having need of dispatch, is better administered by one than by many: on the other hand, whatever depends on the legislative power, is oftentimes better regulated by many than by a single person.
But if there were no monarch, and the executive power should be committed to a certain number of persons selected from the legislative body, there would be an end of liberty, since the two powers would be united; as the same persons would sometimes possess, and would be always able to possess, a share in both.

— The Spirit of the Laws, Book XI

Isaac Newton

• Principio Mathematica
• launched idea of a divinely-ordered universe understandable by mathematics

Voltaire

• 1694-1778
• French philosopher and writer
• real name =
• "Voltaire" is 'nom de pleume" (pen name), derived from an anagram
• ideas:
  • freedom of speech
  • freedom of religion and freedom and toleration
  • separation of church and state
    • was very anti-clerical and anti-dogma (strict religious rules)
    • was a "deist" but not an atheist
  • disliked democracy
    • leads to mob rule
  • pluralism
    • Voltaire studied foreign religions and history and considered them on equal basis as with those of the West
    • he admired Confucius:

 Confucius has no interest in falsehood; he did not pretend to be prophet; he claimed no inspiration; he taught no new religion; he used no delusions; flattered not the emperor under whom he lived... 

• works:
  • Candide
  • satire on Enlightenment thought "best of all possible worlds"
• quotations:
  • "Common sense is not so common."