我们在林业方面成功的真正衡量标准是我们为子孙后代留下的东西，而不仅仅是我们的季度报告。

It is the duty of a student to get everything out of a teacher， and the duty of a teacher to get everything out of a student.

The needs of farmers are the direction of our scientific research.

Don't criticize what you can't understand.

To write poetry after Auschwitz is barbaric.