我不怕被人批评，最怕的是没人理我。

在共和政府中，人人平等；在专制政府中，人人也平等：在前者中，因为他们是一切；在后者中，因为他们什么都不是。

教育必须基于儿童的心理发展，而不是教育者的任意意志。

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 things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.

Green development is not a multiple-choice question, but a must-answer question. We must unswervingly follow the path of green and low-carbon development.

We must design technology that adapts to human behavior, not the other way around.

生命真正的意义是种树，而不指望坐在树荫下。