Study the past if you would define the future. I am not one who was born in the possession of knowledge; I am one who is fond of antiquity, and earnest in seeking it there. Learning without thought is labor lost; thought without learning is perilous.

All the darkness in the world can't put out the light of one candle.

When frying small fish, disturb them little.

The demands that good people make are upon themselves; Those that bad people make are upon others.

An angry man is full of poison.

In a district of ten families, there must be someone as honorable and sincere as I, but none as fond of learning.

We should feel sorrow, but not sink under its oppression.