理解宇宙不仅需要智慧，还需要想象力。
Understanding the universe requires not just intelligence, but imagination.
There is no friend as loyal as a book.
A wise man will make more opportunities than he finds.
The details are not the details. They make the design.
I think we have a unique culture at Amazon that encourages both risk-taking and long-term thinking.
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。
The beauty of mathematics lies in its ability to describe the universe in the simplest terms.