“The important thing is not to stop questioning. Curiosity has its own reason for existing.”
“The most important question a person can ask is, "Is the Universe a friendly place?”
“You never fail until you stop trying.”
“There are two important things for full success in life:1. Don´t tell everything you know.”
“Curiosity is more important than knowledge.”
“Morality is of the highest importance -- but for us, not for God.”