That which knows all things and is known by none is the subject.

Wicked thoughts and worthless efforts gradually set their mark on the face, especially the eyes.

No one writes anything worth writing, unless he writes entirely for the sake of his subject.

We should be surprised that a matter that generally plays such an important part in the life of man has hitherto been almost entirely disregarded by philosophers, and lies before us as raw and untreated material.

Before you take anything away, you must have something better to put in its place.

The man never feels the want of what it never occurs to him to ask for.

It is only when a man is alone that he is really free.