If I give a student one-fourth of what he should know, I expect him to get the other three-fourths himself, otherwise I do not want him as a student.

I live in a very small house, but my windows look out on a very large world.

To study and not think is a waste. To think and not study is dangerous.

You will never know how sharp a sword is unless it's drawn from its sheath

Don't curse the darkness, light a candle.

By gaining the people, the kingdom is gained; by losing the people, the kingdom is lost.

Many seek happiness higher than men; others beneath him. But happiness is the same height as man.