递归是计算的根源，因为它需要时间来描述。

我必须研究政治和战争，以便我的儿子们可以自由地研究数学和哲学。

The most important thing in filmmaking is to be honest with your story and characters.

"The hardest part of being a machine is pretending to be human."

America has no permanent friends or enemies, only interests.

The stage is where I feel most alive and true to myself.

The more you give, the more you receive.

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.

No man really knows about other human beings. The best he can do is to suppose that they are like himself.