More quotes by Galileo Galilei

"Measure what can be measured, and make measurable what cannot be measured."
"You cannot teach a man anything, you can only help him find it within himself."
"I have never met a man so ignorant that I couldn't learn something from him."
"In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual."
"By denying scientific principles, one may maintain any paradox."