To speak is to risk, but to be silent is to risk more.
说话是一种冒险，但沉默是更大的冒险。
成功不是幸福的关键。幸福才是成功的关键。如果你热爱你所做的事情，你就会成功。
In mathematics, as in life, the most profound discoveries often come from asking the simplest questions.
Stop being afraid of what could go wrong and think of what could go right.
Behavior is determined by the interaction of drive and habit strength.
If you let yourself be undisciplined on the small things, you will probably be undisciplined on the large things as well.
Vote for the man who promises least; he'll be the least disappointing.