天地有万古岁月,可人死了就不会再复活;人寿命最多百年,一天很容易就会过去了。
A teacher must have a healthy body, the skills of a farmer, the mind of a scientist, the interest in art, and the spirit of social reform.
The moment you stop trying to be better is the moment you start to get worse.
The most advanced technology is worthless if farmers can't use it effectively.