智者和愚人都没有害,最危险的倒是智愚参半。
The true measure of agricultural success is not yield alone, but the health of the ecosystem that produces it.
"To live is the rarest thing in the world. Most people exist, that is all."
数学的本质在于它的自由。
The true measure of a man is how he treats someone who can do him absolutely no good.