The biggest different between money and time: you always know how much money you have but you never know how much time you have.

Science can lift people out of poverty and cure disease. That, in turn, will reduce civil unrest.

To free us from the expectations of others, to give us back to ourselves there lies the great, singular power of self-respect.

Success is not about luck; it's about hard work, resilience, and determination.

Man's character is his fate.

If you don't start somewhere, you're gonna go nowhere.

The moment you fear, you are nobody. It is fear that is the great cause of misery in the world.