解决复杂问题的关键通常是找到正确的抽象，这种抽象可以在不丢失问题本质特征的情况下简化问题。

The pharmaceutical industry must balance profit with purpose—our mission is to heal, not just to sell.

The role of oil and gas companies is evolving, and we must evolve with it.

It is now clear that the hybrids form seeds which have the one or the other of the two differentiating characters.

我不害怕说出我的想法。