"Knowing how to deal well with not knowing is far more important than knowing."

"Success comes from knowing what you don't know more than from knowing what you do know."

"God wants a child's heart and a grownup's head."

"Education without values, as useful as it is, seems rather to make man a more clever devil."

"The next time you encounter a difficult obstacle or problem, you should smile and say, Here's my chance to grow."

"Have more than you show, Speak less than you know."