"We are told such a number as the square root of 2 worried Pythagoras and his school almost to exhaustion. Being used to such queer numbers from early childhood, we must be careful not to form a low id…"

"Needless to say, taken literally, this is just as absurd. For an adult organism the energy content is as stationary as the material content. Since, surely, any calorie is worth as much as any other ca…"

"The scientific method is the best way to get at the truth, but it is not the only way."

"The only way to do great work is to love what you do."

"The future is uncertain, but that is precisely what makes it interesting."