Every building is a prototype. No two are the same.

Mathematics is the poetry of logical ideas.

Those who keep learning，will keep rising in life.

共产主义的理论可以用一句话概括：废除一切私有制。

The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.

The quality of an organization's vision determines the quality of its direction.

真正的智能是理解，而不仅仅是计算。