Doubt is not a pleasant condition， but certainty is an absurd one.

Sustainability isn't an option—it's our responsibility to future generations.

The architect must be a servant of the people.

Opportunities are always reserved for those who are prepared.

解释：对事物最好的证明是有效果，对论点最好的认定是有证据。

创新不仅仅是创造新产品；而是重新思考如何利用资源来建设可持续的未来。

解释：天道远离人间，人道则存在于身边的社会人事之中，可以就近掌握。对于人所难及的事物，如何能知道呢？