“Failure and invention are inseparable twins. To invent you have to experiment, and if you know in advance that it's going to work, it's not an experiment.”

“Let us not seek the Republican answer or the Democratic answer but the right answer”

“I like the challenge of trying different things and wondering whether it’s going to work...”

“The most we can hope for is to create the best possible conditions for success, then let g...”

“You don’t need directions, just point yourself to the top and go!”

“You are not defeated when you lose. You are defeated when you quit.”

“No great mind has ever existed without a touch of madness.”

“The best thinking has been done in solitude The worst has been done in turmoil”

“If you’re absent during my struggle don’t expect to be present during my success.”

“The one unchangeable certainty is that nothing is certain or unchangeable”

“Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.”

“Only the guy who isn’t rowing has time to rock the boat.”

“Life is too short, or too long, for me to allow myself the luxury of living it so badly.”