信仰是即使在看不到整个阶梯的情况下也迈出第一步。
Faith is taking the first step even when you don't see the whole staircase.
A good mathematician is always ready to generalize.
艺术作品是未来的种子。
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
幸福不是好运或外部事件的结果，而是我们解释这些事件的方式。
自由是心灵的状态，获取它的最好方式是培育它。
幸福通过美德获得；它是人通过自己的意志获得的美好。