The man who loves his job never works a day in his life.

Heaven gives long life to the just and the intelligent.

If I hold up one corner of a square and the student cannot workout the other three for himself, I won't go any further.

Women and people of low birth are very hard to deal with. If you are friendly to them, they get out of hand, and if you keep your distance, they resent it.

Never do to others what you would not like them to do to you.

I daily examine myself on three points: In planning for others, have I failed in conscientiousness? In intercourse with friends, have I been insincere? And have I failed to practice what I have been taught?

Love makes a spot beautiful: who chooses not to dwell in love, has he got wisdom?