可持续发展需要平衡经济效益与环境保护。

If oxen and horses and lions had hands and could paint with their hands and produce works of art as men do, horses would paint the forms of the gods like horses, and oxen like oxen, and they would make their bodies in accordance with the form that each species itself possesses.

I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.

写作不仅是一门艺术；它是一种必需品，一种将生命注入思想的方式。

你必须对你所做的事情充满热情。如果你没有热情，你就不会成功。

认证标准不仅仅是文书工作，它们是我们对地球的承诺。

We must be free not because we claim freedom, but because we practice it.