In the end, we will remember not the words of our enemies, but the silence of our friends.
追求真理是人类最高尚的事业。
You are always a valuable, worthwhile human being — not because anybody says so, not because you're successful, not because you make a lot of money — but because you decide to believe it and for no other reason.
The truth is not always beautiful, nor beautiful words the truth.
积极情绪就像是心灵的营养，帮助我们成长和蓬勃发展。
次要规则是那些规定主要规则的创建、修改和废止的规则。
物理学家必须对自然法则的简洁与美怀有一种信念。