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.

文学是时间的见证，记录着人类的情感和思想。

历史不是发生了什么，而是我们记住了什么以及如何记住它。

我们就是我们一再重复的行为。因此，卓越不是一种行为，而是一种习惯。