Changing the destructive things you say to yourself when you experience the setbacks that life deals all of us is the central skill of optimism.

你的二十多岁是做一些不寻常、奇怪、大胆、冒险、无法解释、疯狂、无利可图、看起来一点也不像“成功”的事情的最佳时期。在你的余生，这些经历将成为你的灵感源泉。

量子力学不仅是一种理论，而且是一种新的思维方式。

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.