“A million of suspicions put together can no more frame a regular proof than a million of ciphers can compose an arithmetical number.

“There are fourths of tones or sounds in music, and these are to be expressed; but there are no fourths in truths, nor in reasoning.

The Works of Voltaire, Vol. IV of XLIII — Part 137

“Two witnesses agreeing in the same deposition, are esteemed to make a proof; but this is not enough; these two witnesses should be clear of all passion and prejudice, and, above all, their testimony should be in every part consonant with reason.

The Works of Voltaire, Vol. IV of XLIII — Part 137

“Suppose four persons of the most respectable appearance were to come and swear in a court of justice that they saw an infirm old man take a vigorous young fellow by the collar and toss him out of a window, to the distance of six or seven feet; certainly such deponents ought to be sent to a madhouse.

The Works of Voltaire, Vol. IV of XLIII — Part 137

“But the eight judges of Toulouse condemned John Calas upon a much more improbable accusation; for there was no one appeared to swear that he had actually seen this feeble old man of seventy seize a stout young fellow of twenty-eight, and hang him up. Indeed, certain enthusiastic wretches said that they had been told by other enthusiasts like themselves that they had been told by some of their own sect that they had heard that John Calas had by a supernatural strength overcome his son and hanged him. And thus was the most absurd of all sentences passed upon the most absurd of all evidence.

“In fine, there is no remedy against such kind of proceedings but that those who purchase their seats in a court of justice should, for the future, be obliged to study a little better.”

This treatise on toleration is a petition which humanity with all submission presents to power and prudence. I have sowed a grain that may perhaps produce a rich harvest. We may hope everything from time, from the goodness of the heart of our gracious monarch, the wisdom of his ministers, and the spirit of sound reason, which begins to diffuse its salutary influence over all minds.

Nature addresses herself thus to mankind: “I have formed you all weak and ignorant, to vegetate a few moments on that earth which you are afterwards to fatten with your carcasses. Let your weakness then teach you to succor each other, and as you are ignorant, bear with and endeavor mutually to instruct each other. Even if ye were all of the same way of thinking, which certainly will never come to pass, and there should be one single person only found amongst you who differed from you in belief, you ought to forgive him, for it is I who make him think in the manner he does. I have given you hands to cultivate the earth, and a faint glimmering of reason to conduct yourselves by, and I have planted in your hearts a spirit of compassion, that you may assist each other under the burden of life. Do not smother that spark, nor suffer it to be corrupted, for know it is of divine origin; neither substitute the wretched debates of the schools in the place of the voice of nature.