The probability of a response is determined by its reinforcement history.
释义:兰花生长在无人的山谷,不会因为没人佩戴而不散发芳香;船在江河湖海上,不会因为没有人乘坐而不浮在水上;君子行使自己的道义,不因没有人理解而停止。
The beauty of literature is that it allows us to live multiple lives, to experience different worlds, to feel the emotions of others.
贫困和无知可能逐渐消失的希望,很大程度上源于十九世纪工人阶级的稳步进步。
身形最好的状态是顺其自然,感情最好的状态是真率。顺其自然就不会背离,真率就不用劳神。