What is worth having is worth working for.

If there is a war to be fought, we don’t consider cost one of the factors in deciding whether or not to fight.

I seemed to have spent the whole time either reading, which I loved, or laughing, which I love, or fooling about, which I loved. There was the usual teenage angst: "Nobody understands me" and "I'm the only genius in the world" and all that stuff. But that didn't get very deep.

True education flowers at the point when delight falls in love with responsibility.

You are dead- what am I speaking to?

I thought physics could be done to the glory of God, till I saw there wasn’t any God at all and that physics was more interesting anyway. The Christian religion is a very powerful and convincing mistake, that’s all.

We don't need lists of rights and wrongs, tables of do's and don'ts: we need books, time, and silence. Thou shalt not is soon forgotten, but Once upon a time lasts forever.