Galileo Galilei: Nobody is totally ignorant

I have never met a man so ignorant that I couldn't learn something from him.

Galileo Galilei

Galileo Galilei (15 February 1564 – 8 January 1642) was an Italian astronomer, physicist, engineer, philosopher, and mathematician who played a major role in the scientific revolution of the seventeenth century. He has been called the "father of observational astronomy", the "father of modern physics", the "father of scientific method", and the "father of science".