让自己开心的最好方法就是试着让别人开心。
The best way to cheer yourself up is to try to cheer somebody else up.
亲代投资是理解两性交配策略差异的关键。
Man is by nature a reasonable being, but animals, other than man, are by nature instruments of brute force.
成人必须了解,儿童需要运用双手,并认同儿童第一次运用双手时,只是工作本能的展现。
I don't sing because I'm happy; I'm happy because I sing.
这是圣王的法则,治理天下的正道,不可不努力去做!