Learning is the process of modifying symbolic structures to improve performance.

译文：清贫的生活，对读书人来说，就是顺境；节俭的日子，对种田人来说，就是丰收的年岁。赏析：读书要耐得住寂寞。清贫的生活能排除浮华奢糜之事，否则只会扰乱身心与学业。节俭是良好的美德，也是人类生存之需要。如果平常俭约，有所积蓄，即使是收成很差，也能丰衣足食。假如不懂得节俭，泿费粮食，即使年年丰收，也会缺衣少食。

Singing is my way of communicating with the world.

Everyone discusses my art and pretends to understand, as if it were necessary to understand, when it is simply necessary to love.

成为英雄的最大障碍是怀疑自己是否会证明自己是个傻瓜；真正的英雄主义是抵抗这种怀疑，而最深刻的智慧是知道何时应该抵抗，何时应该服从。

The key is to set realistic customer expectations, and then not to just meet them, but to exceed them — preferably in unexpected and helpful ways.