No one finds fault with defects which are the result of nature.

The search for truth is in one way hard and in another way easy, for it is evident that no one can master it fully or miss it wholly. But each adds a little to our knowledge of nature, and from all the facts assembled there arises a certain grandeur.

I say that habit's but a long practice, friend, And this becomes men's nature in the end

Poetry is something more philosophic and of graver import than history, since its statements are of nature of universals, whereas those of history are of singulars

The family is the association established by nature for the supply of man's everyday wants.

Man is by nature a political animal.