If you cant explain it to a six year old, you dont understand it yourself. What is your favorite Albert Einstein quote?

“The word God is for me nothing more than the expression and product of human weaknesses, the Bible a collection of honorable but still primitive legends which are nonetheless pretty childish. No interpretation, no matter how subtle ...can change this.”

—Albert Einstein 

"Unthinking respect for authority is the greatest enemy of truth."

"If you come to a fork in the road, take it".