"Men and women differ in their desires for short-term mating because the reproductive benefits and costs differed for our ancestors."
书籍是镜子，但它们也是窗户。
The secret of change is to focus all of your energy，not on fighting the old，but on building the new.
改变的秘诀是集中你的所有能力，不是摧毁旧的，而是建造新的。
我不需要运气，我自己创造运气。