任何牺牲基本自由以换取短暂安全的人，最后既得不到安全也得不到自由。

冲突是思想的牛蝇。它激发我们观察和记忆。它激励创新。它将我们从羊群般的被动性中惊醒，并让我们留心观察和设计。

农业的可持续性不是一种选择，而是为后代必须做的事情。

"To read is to travel without moving; to write is to move without traveling."

Everyone seems to have a clear idea of how other people should lead their lives, but none about his or her own.

True leadership means helping others to be better than they thought they could be.