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.

A building must be both strong and gentle.

We hope to use technology to help more people be seen and more voices be heard.

在数学中，最简单的问题往往导致最深刻的发现。

生命是用来度过的，不是用来节省的。

解析：知行工夫本不可离。