研究学习的唯一有意义的方法是通过客观测量。
The only meaningful way to study learning is through objective measurement.
Writing is a way of making sense of the world.
要像上帝一样，并追随祂，是理性生物的事业和幸福。
Freedom is the greatest fruit of self-sufficiency.
在最黑暗的时刻，即使是最小的善举也能像星星一样闪耀。
