世界所有前进的动力都归功于不安分的人;幸福的人不可避免地把自己限制在古老的界限内。
The world owes all its onward impulses to men ill at ease; the happy man inevitably confines himself within ancient limits.
如果你不能理解某人为什么要做某事,那么看看他们行为的后果,不管他们可能是什么,然后从他们的后果中推断出动机。
物理学的美丽在于它能够用简单的原理解释复杂的事物。
The best scientists are those who never stop asking why.
Profit without purpose is empty; purpose without profit is unsustainable.
Life itself is the most wonderful fairy tale.