If you don't believe in yourself, no one else will.

Never underestimate the power of collaboration—great things are rarely achieved alone.

你有敌人?很好。这说明在你的生命中的某个时刻,你曾经呐喊过。

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.