Étienne Bonnot de Condillac
- The art of reasoning is nothing more than a language well arranged.
- As quoted in Antoine Lavoisier, Elements of Chemistry (trans. Robert Kerr, 1790), Preface, p. xiv.
- We shall not ... begin this logic by definitions, axioms, or principles; we shall begin by observing the lessons which nature gives us.
- The Logic of Condillac (trans. Joseph Neef, 1809), "Of the Method of Thinking", p. 3.
- The tone in which an Englishman expresses anger would, in Italy, be only a mark of surprise.
- As quoted in David Booth, The principles of English composition (1831), p. 8.
- Our ideas are transformed sensations.
- As quoted in Treasury of Wisdom, Wit and Humor, Odd Comparisons and Proverbs (1878), p. 204.
- To the eye of God there are no numbers: seeing all things at one time, he counts nothing.
- As quoted in Physically Speaking: A Dictionary of Quotations on Physics and Astronomy (1997), p. 101.
- Étienne Bonnot de Condillac, An Essay on the Origin of Human Knowledge, Being a Supplement to Mr. Locke's Essay on the Human Understanding, Translated by Thomas Nugent (London: J. Nourse, 1756)