世界的美有两面，一面是欢笑，一面是痛苦，将心割裂。

孤独催生我们内心的原创性，催生陌生而危险的美——催生诗歌。

教师必须相信每个孩子的可教育性。

智慧来自于经验的积累和对这些经验的反思。

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.