活着就是受苦，生存就是在苦难中找到一些意义。

Success in the quarrying industry comes from balancing efficiency with environmental responsibility.

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.

每个时代都有其巨大的道德盲点。我们可能看不到，但我们的孩子会看到。