大国之攻小国,譬由童子之为马也。
大国攻打小国,就好像儿童爬在地上当马一样。 
释义:不能因为暂时的得意就自夸能力出众;也不能因为暂时的失意就丧失自己的志向。
Three grand essentials to happiness in this life are something to do, something to love, and something to hope for.
The psychologist must study the mind without presuppositions.
道德的目的是教你,不是受苦和死亡,而是享受自己和生活。
Economic theory provides the tools, but real-world testing refines them.