Those who write against vanity want the glory of having written well, and their readers the glory of reading well, and I who write this have the same desire, as perhaps those who read this have also.

The art of subversion, of revolution, is to dislodge established customs by probing down to their origins in order to show how they lack authority and justice.

[Unbelievers] think they have made great efforts to get at the truth when they have spent a few hours in reading some book out of Holy Scripture, and have questioned some cleric about the truths of the faith. After that, they boast that they have searched in books and among men in vain.

The weather and my mood have little connection. I have my foggy and my fine days within me; my prosperity or misfortune has little to do with the matter.

As we speak of poetical beauty, so ought we to speak of mathematical beauty and medical beauty. But we do not do so; and that reason is that we know well what is the object of mathematics, and that it consists in proofs, and what is the object of medicine, and that it consists in healing. But we do not know in what grace consists, which is the object of poetry.

It is of dangerous consequence to represent to man how near he is to the level of beasts, without showing him at the same time his greatness. It is likewise dangerous to let him see his greatness without his meanness. It is more dangerous yet to leave him ignorant of either; but very beneficial that he should be made sensible of both.

We sail within a vast sphere, ever drifting in uncertainty, driven from end to end. When we think to attach ourselves to any pointand to fasten to it, it wavers and leaves us; and if we follow it, it eludes our grasp, slips past us, and vanishes for ever. Nothing stays for us.