Will the slave fight? If any man asks you, tell him No. But if anyone asks you will a Negro fight, tell him Yes!
Success comes from curiosity, concentration, perseverance and self criticism.
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.
I've been pretty fortunate.
The crocodile cannot turn its head. Like all science, it must always go forward with all-devouring jaws.
Sensitive, humbug. Everybody thinks I'm sensitive. Wait until they hear my new album.
Hope springs eternal in the human breast; Man never Is, but always To be Blest. The soul, uneasy, and confin'd from home, Rest and expatiates in a life to come. Lo, the poor Indian! whose untutor'd mind Sees God in clouds, or hears him in the wind; His soul proud Science never taught to stray Far as the solar walk or milky way; Yet simple Nature to his hope has giv'n, Behind the cloud-topp'd hill, an humbler heav'n.