At a restaurant do you order what you know is great， or do you try something new？ Do you make what you know will sell or try something new？ Do you keep dating new folks or try to commit to someone you already met？ The optimal balance for exploring new things vs exploiting them once found is: 1/3. Spend 1/3 of your time on exploring and 2/3 time on deepening. It is harder to devote time to exploring as you age because it seems unproductive， but aim for 1/3.

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.

Climate change is not just a threat to agriculture; it's a call to reinvent it.

如果你认为一个人的本质是好的，就要随时为这个人提供帮助，即使其他人都离他而去。任何人都可能陷入困境。在别人需要的时候，一个偶然的善意行为就会改变他的生命轨迹，造就意想不到的友谊或忠诚。

创新不是颠覆，而是持续优化。