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The ability to associate depends, in turn, on the degree to which communities share norms and values and are able to subordinate individual interests to those of larger groups.

我的觀察是每當某個任務一個人就可以完成… 兩個人就會做得更差，三個或更多人時則幾乎沒什么行動。

The walls of the educational system must come down. Education should not be a privilege, so the children of those who have money can study.

森林不需要我們，而是我們需要森林。