Simplicity is not the goal. It is the by-product of a good idea.
I've learned that growth comes from pain and struggle.
在数学中，发现的旅程往往比目的地本身更有价值。
Life is not a series of gig lamps symmetrically arranged; life is a luminous halo, a semi-transparent envelope surrounding us from the beginning of consciousness to the end.
宇宙不仅比我们想象的更奇怪，而且比我们能够想象的更奇怪。
It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.
试图阻止知识前进是没有好处的。无知永远不比知识好。
The only phrase I've ever disliked is, 'Why, we've always done it that way.' I always tell young people, 'Go ahead and do it. You can always apologize later.'