To know oneself, one should assert oneself.

Full wise is he that can himselven knowe.

The test of a civilized person is first self-awareness, and then depth after depth of sincerity in self-confrontation.

It is not enough to understand what we ought to be, unless we know what we are; and we do not understand what we are, unless we know what we ought to be.

It is doubtless a vice to turn one's eyes inward too much, but I am my own comedy and tragedy.

Wherever we go, whatever we do, self is the sole subject we study and learn.

Know thyself! A maxim as pernicious as it is ugly. Whoever observes himself arrests his own development. A caterpillar who wanted to know itself well would never become a butterfly.

Let a man once see himself as others see him, and all enthusiasm vanishes from his heart.

Hardly anybody recognizes the most significant moments of their life at the time they happen.

When one is a stranger to oneself then one is estranged from others too.