It is only in the mysterious equations of love that any logical reasons can be found.
只有在爱的神秘方程式中才能找到任何合乎逻辑的理由。
习惯的强度是其被强化次数的函数。
I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.
无产阶级平等要求的实际内容都是消灭阶级的要求。
社会进步需要个体自由与社会责任的有机结合。