They talk of a man betraying his country, his friends, his sweetheart. There must be a moral bond first. All a man can betray is his conscience. – Joseph Conrad
It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years. – Stephen Hawking
Men can live without air a few minutes, without water for about two weeks, without food for about two months — and without a new thought for years on end. – Kent Ruth
