Perseverance

You can't control how smart you are, how funny you are, how good-looking you are. The one thing you can control in your life is how hard you work.

The one way to guarantee you're not going to be successful at something is to give up on it. Really ambitious goals — starting a theater company, running for Congress, opening an art gallery in Prague. These things are hard. But even the hardest goal is not that hard.

It doesn't matter how slow you go, so long as you don't stop. My point is: be fair to yourselves with regards to how you view your achievements. And don't be afraid to try things outside your comfort zone.

We cannot always bend the world into the shapes we want, but we can try. We can make a concerted and real and true effort. Always just try, because you never know.

Adversity is a necessary and important part of life. Adversity strengthens each of us in ways that success cannot.

There is no adversity capable of stopping you once the choice to persevere is made.

It meant more to our father to see us deal with a setback and try to bounce back than to watch how we handled our successes. 'Show what you are made of,' he would say.

We human beings are a lot more resilient than we often realize.

A persistent curiosity can help us reach ambitious goals, even with great roadblocks in the way.

In every life, there will be crucial moments when having the courage to stand up for what you believe will be immensely important.

Work hard, like, every waking hour. That's the thing I would say, particularly if you're starting a company.

There is no such thing as an overnight success. It is a myth that glosses over what being an entrepreneur is all about.