I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.

The world is a book, and those who do not travel read only one page.

The function of freedom is to free someone else.

Pessimism leads to weakness, optimism to power.

做伟大工作的唯一途径就是热爱你所做的事。