种一棵树最好的时间是20年前，第二好的时间是现在。
The best time to plant a tree was 20 years ago; the second best time is now.
The people who are crazy enough to think they can change the world are the ones who do.
The one thing you can't trade for your heart's desire is your heart.
成功不是终点，失败也不是致命的：继续前进的勇气才是最重要的。