但是在他看来，它真正的病是衰老，而衰老是治不好的。

"The colony is the place where the project of a new humanity is to be tested, where the dream of a world without borders is to be realized, where the dream of a world without races is to be realized, where the dream of a world without nations is to be realized, where the dream of a world without classes is to be realized, where the dream of a world without genders is to be realized, where the dream of a world without religions is to be realized, where the dream of a world without money is to be realized, where the dream of a world without property is to be realized, where the dream of a world without war is to be realized."

阿基莱·姆本贝

活着就是有幸福的权利，也有快乐的义务。

胡适

高普尼克把学习分为三个重要的层次。第一个层次，也是最初级的学习，即通过试错来学习。这是所有动物都会运用的学习方式，即通过不断地试错，来提升想象力和记忆力。第二个层次，也是第二级的学习，即通过观察和模仿来学习，即通过观察和模仿，直接学习他人的行为和动作，这种学习方式比试错的学习方式高效了很多。第三个层次，也是第三级的学习，即运用符号来学习，这是人类特有的学习，也是最高级的学习，即利用文字和语言，通过说话与倾听来学习。

朱永新

Some people are extraordinarily good at knowing the limits of their knowledge because they have to be.

有些人特别善于了解自己的知识极限，因为他们必须这样做。

查理·芒格

All human actions have one or more of these seven causes: chance, nature, compulsion, habit, reason, passion, and desire.

所有人类行为都有以下七个原因中的一个或多个：机会、自然、强迫、习惯、理性、激情和欲望。

亚里士多德

夫战，勇气也。一鼓作气，再而衰，三而竭。彼竭我盈，故克之。