The power of a man, is his present means, to obtain some future apparent good.

Failure gave me an inner security that I had never attained by passing examinations. Failure taught me things about myself that I could have learned no other way. I discovered that I had a strong will, and more discipline than I had suspected; I also found out that I had friends whose value was truly above the price of rubies.

矩阵力学是对经典物理学的彻底背离，但它是解释原子世界所必需的。

最好的想法往往在你最意想不到的时候出现。