The wise persono would rather see others needing him than thanking him.
Self knowledge is the beginning of self improvement.
Know how to choose well. Most of life depends thereon. It needs good taste and correct judgment, for which neither intellect nor study suffices.
He who laughs at everything is as big a fool as he who weeps at everything.
Knowledge without courage is sterile.
Man is born a barbarian, and only raises himself above the beast by culture.