The best way to measure how much you've grown isn't by inches or the number of laps you can now run around the track, or even your grade point average - though those things are important, to be sure.It's what you've done with your time, how you've chosen to spend your days, and whom you've touched this year. That, to me, is the greatest measure of success.

You have to write the book that wants to be written. And if the book will be too difficult for grown-ups, then you write it for children.

过得最充实的人不是年龄最大的，而是经历最丰富的人。

世界上充满了显而易见的事物，但没有人注意到它们。