The most important thing in directing is to have a clear vision of what you want to achieve.

Sustainability isn't a choice—it's a responsibility we owe to future generations.

现在，对于做了很小错事的人，人们都知道他做错了并谴责他；对于犯了大的过错，以至于攻打别的国家的人，人们却不知道谴责他，反而跟着赞美这种行为，说这是义。 

I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.

Educate the children， and it won't be necessary to punish men.