logic Quotes

A witty saying proves nothing.

Prejudices are what fools use for reason.

A fanatic is one who can't change his mind and won't change the subject.

To my mathematical brain, the numbers alone make thinking about aliens perfectly rational. The real challenge is to work out what aliens might actually be like.

If you believe in science, like I do, you believe that there are certain laws that are always obeyed.

One cannot really argue with a mathematical theorem.

Theology is unnecessary.

Presented with the claims of nineteenth-century racist anthropology, a rational person will ask two sorts of questions: 'What is the scientific status of the claims?' 'What social or ideological needs do they serve?'

I do not think psychoanalysis has a scientific basis. If we can't explain why a cockroach decides to turn left, how can we explain why a human being decides to do something?

Colorless green ideas sleep furiously.