It receives but does not keep.

I do not know whether I was then a man dreaming I was a butterfly, or whether I am now a butterfly dreaming I am a man

Those who realize their folly are not true fools

Men honor what lies within the sphere of their knowledge, but do not realize how dependent they are on what lies beyond it

He who pursues fame at the risk of losing his self is not a scholar.

Great wisdom is generous; petty wisdom is contentious. Great speech is impassioned, small speech cantankerous.