The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.
The best time to plant a tree was 20 years ago; the second best time is now.
Hard work beats talent when talent doesn't work hard.
夜晚是一位伟大的老师，但很少有人愿意学习。
An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment.