No one should be subjected to force over things which belonged to him.

Books are a languid pleasure.

I put forward formless and unresolved notions, as do those who publish doubtful questions to debate in the schools, not to establish the truth but to seek it.

Every one is well or ill at ease, according as he finds himself! not he whom the world believes, but he who believes himself to be so, is content; and in him alone belief gives itself being and reality

No man divulges his revenue, or at least which way it comes in: but every one publishes his acquisitions.

I study myself more than any other subject. That is my metaphysics, that is my physics.

Learned we may be with another man's learning: we can only be wise with wisdom of our own.