The environment will appear different to different observers depending on what they are prepared to see.

森林的真正价值不仅在于木材产量，还在于生物多样性和生态系统健康。

I think that the most important thing in life is to be happy and to make other people happy.

通常，我们只看见我们正在寻找的东西，有时甚至凭空就能看见。