单子是不可分割的实体，是构成世界的基本元素。

In computer science, we often find that the simplest solutions are the most elegant.

OPEC no longer holds all the cards in global oil markets.

Sometimes the hardest thing and the right thing are the same.

领导力在于激励他人看到他们可以共同实现的潜力。

努力和坚持终会有回报。