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 longer I live, the more I am inclined to the belief that this earth is used by other planets as a lunatic asylum.
外交是一种手段，而不是目的。
人性本善，但罪恶的社会环境使人变坏了。
"A child who reads will never be bored."