1983年12月，杨振宁向邓小平建议
The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind, who will but consult it, that... no one ought to harm another in his life, health, liberty, or possessions.
Learning is not a passive process; it involves the active construction of knowledge.
The role of the artist is to ask questions, not answer them.
"Un buen libro es aquel que te cambia, aunque sea un poco."