“It is not the possession of truth, but the success which attends the seeking after it, that enriches the seeker and brings happiness to him.”

“[I do not believe] in a personal God, let alone a Christian God.”

“The Theory of Relativity confers an absolute meaning on a magnitude which in classical theory has only a relative significance: the velocity of light. The velocity of light is to the Theory of Rela...”

“Science cannot solve the ultimate mystery of nature. And that is because, in the last analysis, we ourselves are a part of the mystery that we are trying to solve.”

“A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar wi...”

“The assumption of an absolute determinism is the essential foundation of every scientific enquiry.”

“Some people don't understand the promises they're making when they make them," I said."Right, of course. But you keep the promise anyway. That's what love is. Love is keeping the promise anyway.”

“I think if I've learned anything about friendship, it's to hang in, stay connected, fight for them, and let them fight for you. Don't walk away, don't be distracted, don't be too busy or tired, don...”

“And now these three remain: faith, hope and love. But the greatest of these is love.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”

“All words are pegs to hang ideas on.”

“A word is not the same with one writer as it is with another. One tears it from his guts. The other pulls it out of his overcoat pocket.”

“No doubt I shall go on writing, stumbling across tundras of unmeaning, planting words like bloody flags in my wake....”