领导力是指让他人因为你的存在而变得更好，并确保这种影响在你离开后依然持续。
The darkest nights produce the brightest stars.
It’s not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change.
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.
It is always good to have a problem that you cannot solve. It means you have something to work on.