A law of nature， lex naturalis， is a precept or general rule found out by reason， by which a man is forbidden to do that which is destructive of his life or takes away the means of preserving the same.
没有人是有极限的。
真相很少是纯粹的，也从不简单。
艺术是我无声尖叫的方式。
2004年9月13日，81岁的杨振宁在清华大学开始为本科生讲授普通物理。他说
The real voyage of discovery consists not in seeking new landscapes, but in having new eyes.
"In literature, as in love, we are astonished at what is chosen by others."