黑暗不在外面，而在我们内心。

Be the change you wish to see in the world.

Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.

像你这样不能在我面前曲意承欢，还不如当初没有生下你来的好。

The quality of an organization's dedication determines the quality of its service.

Then I had religion, then I had a vision. I could not turn from their revel in derision. Then I saw the Congo creeping through the black, cutting through the forest with a golden track。