It must be remembered that while sympathy with joy intensifies the sum of joy in the world., sympathy with pain does not really diminish the amount of pain. It may make man better able to endure evil, but the evil remains.

品质始于土壤。健康的土地才能长出健康的水果。

研究心灵就是研究适应行为；每个思想都是生活的工具。

"To write a biography is to walk in another's shoes, to see the world through their eyes."

逻辑学研究不仅仅是关于形式系统，更是关于理性思维和话语的规范。

The greatest breakthroughs often come from unexpected places.

我一生都在学习奋斗 - 也学会了保持微笑。如果你微笑，事情就会解决。