挑战是伪装的机会,用勇气和创造力去迎接它们。
Challenges are opportunities in disguise; embrace them with courage and creativity.
办一件事都不能善始善终,就不要做很多事。 
I am not without possessions; I have freedom.
Act as if what you do makes a difference. It does.
The most exciting moments in mathematics are when you discover something that was hidden in plain sight.