The strength of an acid is measured by its ability to donate a proton, and the strength of a base by its ability to accept a proton.
酸的强度由其提供质子的能力来衡量，碱的强度由其接受质子的能力来衡量。
The brain is a machine assembled not to understand itself, but to survive. It is a machine for making decisions that lead to survival.
Many backward steps are made by standing still.
行为主义者放在自己面前的规则或衡量标准总是：我能否用"刺激和反应"来描述我所看到的这一行为？
Man is not the creature of circumstances； circumstances are the creatures of men.
大地的诗歌永远不会消亡。
解释：辅与车互相依存，嘴唇没有了，牙齿就要受寒。