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.

The study of mental processes requires both experimental and comparative methods.

最好的感觉是当你知道自己做得一切正确，赛车状态完美的时候。

The psychologist must study the mind without presuppositions.

The harder you work for something, the greater you’ll feel when you achieve it.