唯一真正的发现之旅不在于寻找新的风景，而在于拥有新的眼光。

关系模型基于谓词逻辑和集合论，为数据库管理提供了坚实的数学基础。

Precision agriculture is not a luxury; it's a necessity for feeding the world sustainably.

When you meet with opposition, even if it should be from your husband or your children, endeavor to overcome it by argument and not by authority, for a victory dependent upon authority is unreal and illusory.

译文：世俗人的感情好比一张张纸，张张都是一样薄；人世间的事情好比一盘棋，一局更比一局新。赏析：人生坎坷不平，命运沉浮变化。世态炎凉如冰，人情淡薄似纸，不过是常态而已。我们唯有学会以平常心生存，才能在得意时不张扬，失意时不消沉。