凡是能够说的，都能够说清楚；对于不可说的东西我们必须保持沉默。

The true value of a forest cannot be measured in board feet, but in the breath of the planet.

书籍经过多次传抄，“鱼” 字可能写成 “鲁” 字，“虚” 字可能写成 “虎” 字。

I think that one should recognize reality even when one doesn’t like it; indeed, especially when one doesn’t like it.

科学不仅仅是发现，更是责任。