Greatness is not this wonderful, esoteric, elusive, god-like feature that only the special among us will ever taste. It's something that truly exists in all of us.
"You can't manage what you don't measure."
近似算法证明了在实现实际解决方案中妥协的力量。
The secret of change is to focus all of your energy，not on fighting the old，but on building the new.