The best moments in our lives are not the passive, receptive, relaxing times… The best moments usually occur if a person’s body or mind is stretched to its limits in a voluntary effort to accomplish something difficult and worthwhile.

幸福就是能够不带恐惧地认识自己。

大爆炸不是一切的开始，而是我们可观测宇宙的开始。

The spirit of man is more important than mere physical strength, and the spiritual spark in man can be fanned into flame.

There are tracts in my life that are bare and silent. They are the open spaces where my busy days had their light and air.

求学的最大益处，在于自我追求改变气质。