永远不要停止学习，因为世界永远不会停止变化。
Never stop learning because the world never stops changing.
The ultimate situations - death, chance, guilt, and the uncertainty of the world - confront man with the reality of his existence.
交往行为的理性是通过对有效性主张的主体间承认来衡量的。
Global food security begins with local soil security.
纪律是目标和成就之间的桥梁。