The best that we can do for one another is to exchange our thoughts freely; and that, after all, is about all.

What is called virtue in the common sense of the word has nothing to do with this or that man's prosperity, or even happiness.

To tell men that they cannot help themselves is to fling them into recklessness and despair.

Philosophy goes no further than probabilities, and in every assertion keeps a doubt in reserve.

Where nature is sovereign, there is no need of austerity and self-denial.

We enter the world alone, we leave it alone.

We must have the real thing before we can have a science of a thing.