森林不仅仅是一种资源;它是我们留给后代的遗产。
没有人能为你建造那座你必须独自跨越生命之河的桥梁。
追求科学不仅仅是追求理解。它是追求奇迹。
In mathematics, truth is always relative to the system you're working in.
There are no vital and significant forms of art; there is only art, and precious little of that.