The one self- knowledge worth having is to know one's own mind.
Where everything is bad it must be good to know the worst.
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.
Few people would not be the worse for complete sincerity.
Metaphysics is the finding of bad reasons for what we believe on instinct.
The man who has ceased to fear has ceased to care.