I have never met a man so ignorant that I couldn't learn something from him.
Galileo Galilei
I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use
Galileo Galilei
You cannot teach a man anything; you can only help him find it within himself.
Galileo Galilei
Doubt is the father of invention.
Galileo Galilei
It is not the mountain we conquer, but ourselves.