No one has ever learned fully to know themselves.
I respect the man who knows distinctly what he wants.
The formation of one's character ought to be everyone's chief aim.
Every man bears something within him that, if it were publicly announced, would excite feelings of aversion.
One must be something to be able to do something.
Whether one show one's self a man of genius in science or compose a song, the only point is, whether the thought, the discovery, the deed, is living and can live on.