“We are all agreed that your theory is crazy. The question is whether it is crazy enough to be true.”

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

“The future starts today, not tomorrow”

“I would like to die on Mars. Just not on impact.”

“You've got enemies? Good. That means you actually stood up for something in your life.”

“The greatest education in the world is watching the masters at work”

“It is easy to love your friend, but sometimes the hardest lesson to learn is to love your enemy.”

“When [competitors are] in the shower in the morning, they're thinking about how they're go...”

“Don’t give in to your fears. If you do, you won’t be able to talk to your heart.”

“You can't force your will on people. If you want them to act differently, you need to insp...”

“When your army has crossed the border, you should burn your boats and bridges, in order to...”

“The minute you learn to love yourself, you won't want to be anyone else”

“I'd rather be hated for who I am, than loved for who I am not”