Reinforcement is the central factor in the acquisition of new behavior patterns.

"To write is to remember, and to remember is to live twice."

政治秩序不仅仅是关于国家，还关于法治和问责制。

Life is a gorgeous robe, crawling with fleas.

这就象花一样。如果你爱上了一朵生长在一颗星星上的花，那么夜间，你看着天空就感到甜蜜愉快。所有的星星上都好象开着花。