One said of suicide, As long as one has brains one should not blow them out. And another answered, But when one has ceased to have them, too often one cannot.

Where everything is bad it must be good to know the worst.

Up to a certain point every man is what he thinks he is.

The one self- knowledge worth having is to know one's own mind.

My external sensations are no less private to my self than are my thoughts or my feelings. In either case my experience falls within my own circle, a circle closed on the outside... the whole world for each is peculiar and private to that soul.

But when one has ceased to have them, too often one cannot.

Eclecticism. Every truth is so true that any truth must be false.