Sit down before fact as a little child, be prepared to give up every preconceived notion, follow humbly wherever and to whatever abysses nature leads, or you shall learn nothing.  

The concrete artist strives to express the spiritual in the most precise and objective form possible.

关于我们所有人的基本事实是，我们会活一段时间，但不久就会死去。

We must constantly challenge the status quo to drive meaningful progress.

There are no ifs in life, only consequences and results.

解析：知道自己还有所不知，这是很高明的。不知道却自以为知道，这就是很糟糕的。