The only limit to our realization of tomorrow is our doubts of today.

The most resilient farms are those that work with nature, not against it.

译文：追求美好德行的人不会附和世俗，要建立非凡功业的人不会将自己事业让别人来决定。

乐观是一种创造更美好未来的策略。因为除非你相信未来会更好，否则你不太可能站出来为创造这样的未来承担责任。

数学是我们建立对世界理解的基础，正是通过这种理解，我们才能解决最复杂的问题。

I pursue no objectives, no systems, no tendency; I have no program, no style, no direction.

Be yourself, everyone else is already taken.

If you don’t strive to uncover what is unseen and understand its nature, you will be ill prepared to lead.

All men have the stars, but they are not the same things for different people. For some, who are travelers, the stars are guides. For others they are no more than little lights in the sky. For others, who are scholars, they are problems. For my businessman they were wealth.