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.

翻译：指出深入研究文章可以分析器物的性能，而深入了解自然规律则可以审视器物的用途。

生活是对灵魂的修炼。