“It is not the man who has too little, but the man who craves more, that is poor ”

“He who is not contented with what he has, would not be contented with what he would like to have”

“Difficulties break some men but make others”

“You are what you believe yourself to be.”

“Life is 10% what happens to us and 90% how we react to it”

“These pains you feel are messengers. Listen to them”

“I think frugality drives innovation, just like other constraints do. One of the only ways ...”

“Vision without execution is just hallucination.”

“Being realistic is the most commonly traveled road to mediocrity.”

“There are two kinds of pain in this world. The pain that hurts, the pain that alters.”

“I don’t count my sit-ups; I only start counting when it starts hurting because they’re...”

“I care not what others think of what I do, but I care very much about what I think of what...”

“Every failed experiment is one step closer to success.”