数学不是一门演绎科学——那是陈词滥调。当你试图证明一个定理时，你不仅仅是列出假设然后开始推理。你所做的是反复试验、实验和猜测。
If you're not making mistakes, you're not trying hard enough.
The only real mistake is the one from which we learn nothing.
The best songs come from real life experiences.
这就是关于每天努力变得不那么无知和自私一点。
The war on coal is a war on the American worker.
物理学家必须对自然法则的简洁与美怀有一种信念。