Life is too short to be anything but happy.

Always plan for the worst-case scenario.

仅仅因为你制定了一个好计划，并不意味着事情会按计划发展。

If you want to build a great enterprise, you have to have the courage to dream great dreams.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

在任何情况下都要寻找积极的一面。总有一些值得感激的事情。

To imagine is everything, to know is nothing at all.

I have a dream that one day this nation will rise up and live out the true meaning of its creed.