Policy alone won’t save our forests—it takes action from individuals, businesses, and governments.

"The unexamined life is not worth living."

The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they believe it will bring them strategic advantage.

If knowledge can create problems, it is not through ignorance that we can solve them.

——在遗嘱上签名后，对在病榻的同志们说，1925年3月11日

There is only one real sin, and that is to persuade oneself that the second-best is anything but the second-best.

Standards are the key to the success of the Internet.