自由的代价是永远保持警惕。
The price of freedom is eternal vigilance.
宇宙不仅比我们想象的更奇怪，而且比我们能够想象的还要奇怪。
词语之间的沉默有时比词语本身更能说明问题。
在量子引力的领域，时空的结构是由纠缠的线编织而成的。
I think we have been through a period where too many people have been given to understand that if they have a problem, it's the government's job to cope with it. 'I have a problem, I'll get a grant.' 'I'm homeless, the government must house me.' They're casting their problem on society. And, you know, there is no such thing as society. There are individual men and women, and there are families. And no government can do anything except through people, and people must look to themselves first. It's our duty to look after ourselves and then, also to look after our neighbour. People have got the entitlements too much in mind, without the obligations.
Positive emotions broaden our awareness and encourage novel, varied, and exploratory thoughts and actions. Over time, this broadened behavioral repertoire builds skills and resources.
The past is always tense, the future perfect.