No rule of etiquette is of less importance than which fork we use.
Man is, at one and the same time, a solitary being and a social being.
Everything that exists in your life, does so because of two things: something you did or something you didn't do.
If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.
I once thought that if I could ask God one question, I would ask how the universe began, because once I knew that, all the rest is simply equations. But as I got older I became less concerned with how the universe began. Rather, I would want to know why he started the universe. For once I knew that answer, then I would know the purpose of my own life.
I refuse to engage in an intellectual battle with an unarmed man.
Learning is the beginning of wealth. Searching and learning is where the miracle process all begins. The great breakthrough in your life comes when you realize it that you can learn anything you need to learn to accomplish any goal that you set for yourself. This means there are no limits on what you can be, have or do.
So long as I can stay mentally alert - inquiring, curious - I want to keep going. I love my wife and my children, but I don't want to sit around at home with them. We go on safaris and things like that. I can do that for a couple of weeks a year. I'm just not ready to stop, to die.
Obviously there is pain in childbirth. But giving birth is also a moment of awe and wonder, a moment when the true miracle of aliveness, and of a woman's amazing part in that miracle, is suddenly experienced in every cell of one's body. It is in that sense truly an altered state of consciousness.
Self-deception is nature; hypocrisy is art.
There's a fine line between a superpower and a chronic medical condition.