“In general, we look for a new law by the following process: First we guess it; then we compute the consequences of the guess to see what would be implied if this law that we guessed is right; then we compare the result of the computation to nature, with experiment or experience, compare it directly with observation, to see if it works. If it disagrees with experiment, it is wrong. In that simple statement is the key to science. It does not make any difference how beautiful your guess is, it does not make any difference how smart you are, who made the guess, or what his name is — if it disagrees with experiment, it is wrong.”

“It doesn't make a difference how beautiful your guess is. It doesn't make a difference how smart you are, who made the guess, or what his name is. If it disagrees with experiment, it's wrong.”

“That's what law is: educated guesses at right and wrong.”

“We spend our lives guessing at what's going on inside everybody else, and when we happen to get lucky and guess right, we think we 'understand.' Such nonsense. Even a monkey at a computer will type a word every now and then.”

“When we are young... we often experience things in the present with a nostalgia-in-advance, but we seldom guess what we will truly prize years from now.”

“When other people disagree with us, we immediately think something is wrong with them. But, as the demonstration shows, sincere, clearheaded people see things differently, each looking through the unique lens of experience.”