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.

挑战在于将平凡变得非凡。

Fear can hold you prisoner. Hope can set you free.

The only real failure in life is not to be true to the best one knows.

The language of mathematics is universal, transcending cultural and linguistic barriers.

将可持续发展与商业战略相结合是取得进展的唯一途径。