“Much of what I have to say for my case may sound wonderful, because it runs counter to the popular prejudice, but the only witness required to prove the truth of my statements is the clear brain of my pupil, who has only to examine his own experience without preconceived notions, in order to find proofs on every hand.”

Source: The Characteristics of the Present Age (1806), p. 105

Memoirs (trans. Machen 1894), book 1, Preface http://etext.library.adelaide.edu.au/c/casanova/c33m/preface2.html <br class="br">Referenced <br class="br">Source: Geschichte Meines Lebens

Letter to his daughter Sarah Mason McCarty after the death of an infand daughter (10 February 1785), published in The Life of George Mason, 1725-1792 Vol. 2 (1892) by Kate Mason Rowland, p. 74
Context: A few years' experience will convince us that those things which at the time they happened we regarded as our greatest misfortunes have proved our greatest blessings. Of this awful truth no person has lived to my age without seeing abundant proof. Your dear baby has died innocent and blameless, and has been called away by an all wise and merciful Creator, most probably from a life of misery and misfortune, and most certainly to one of happiness and bliss.

Source: What I Talk About When I Talk About Running

Source: 1925 - 1940, The sculptor speaks' (1937), p. 255

Source: The Life of Pasteur (1902), p. 242; The first statement in bold in the above paragraph, as quoted from in Œuvres de Pasteur, Volume 7 (1939), Masson et cie, p. 539 reads:
Mon opinion, mieux encore, ma conviction, c'est que, dans l'état actuel de la science, comme vous dites avec raison, la génération spontanée est une chimère, et il vous serait impossible de me contredire, car mes expériences sont toutes debout, et toutes prouvent que la génération spontanée est une chimère

Lectures XIV and XV, "The Value of Saintliness"
1900s, The Varieties of Religious Experience (1902)
Context: I am well aware of how anarchic much of what I say may sound. Expressing myself thus abstractly and briefly, I may seem to despair of the very notion of truth. But I beseech you to reserve your judgment until we see it applied to the details which lie before us. I do indeed disbelieve that we or any other mortal men can attain on a given day to absolutely incorrigible and unimprovable truth about such matters of fact as those with which religions deal. But I reject this dogmatic ideal not out of a perverse delight in intellectual instability. I am no lover of disorder and doubt as such. Rather do I fear to lose truth by this pretension to possess it already wholly.

Knowing Yourself: The True in the False (1996)

Letter to Emily Sartain (1886-03-25). Frank Stephens was Eakins' brother-in-law.