理学的核心思想在于‘理是统一的，但表现形式多样’。

Agricultural research should address national needs and solve practical problems, it cannot be separated from production practice.

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.