“Nature has made all her truths independent of one another. Our art makes one dependent on the other.”

“Reverend Fathers, my letters do not customarily follow one another so closely, nor are they usually so extensive. The little time I have had has caused both. I have made this one longer only because I have not had the leisure of making it shorter.”

“The only religion which is against nature, against common sense and against our pleasures is the only one which has always existed.”

“Why should I choose to divide my ethics into four rather than six? Why should I define virtue as four, or two, or one? Why as desist and resist rather than 'follow nature' or 'discharge your private business without injustice', like Plato, or anything else?'But,' you will say, 'there everything is summed up in a word. - 'Yes, but that is no good unless you explain it.' And when you come to explain it, as soon as you open up this precept which contains all the others, out they all come in the original confusion that you wanted to avoid. Thus when they are all enclosed in one they are concealed and useless, as if they were in a box, and they only come to light in their natural confusion. Nature has laid them down, without enclosing one inside another.”

“All men naturally hate one another. They employ lust as far as possible in the service of the public weal. But this is only a pretence and a false image of love; for at bottom it is only hate.”

“Once that is clearly understood, I think that each of us can stay quietly in the state in which nature has placed him. since the middle station allotted to us is always far from the extremes, what does it matter if someone else has a slightly better understanding of things? If he has, and if he takes them a little further, is he not still infinitely remote from the goal? Is not our span of life equally infinitesimal in eternity, even if it is extended by ten years?In the perspective of all these infinites, all finites are equal and I see no reason to settle our imagination on one rather than another. Merely comparing ourselves with the finite is painful.”

“We naturally believe we are more capable of reaching the centre of things than of embracing their circumference, and the visible extent of the world is visibly greater than we. But since we in our turn are greater than small things, we think we are more capable of mastering them, and yet it takes no less capacity to reach nothingness than the whole. In either case it takes an infinite capacity, and it seems to me that anyone who had understood the ultimate principles of things might also succeed in knowing infinity. One depends on the other, and one leads to the other. These extremes touch and join by going in opposite directions, and they meet in God and God alone.”