税收应该简化，以促进经济的发展。
I am convinced that the substitution of a simple tax on the rent of land for the complicated taxes which at present oppress industry would be advantageous to all classes.
Overfishing is a solvable problem, but it requires global commitment and local action.
设计良好的市场能最大限度地减少策略操纵的机会。
地球及其周围的水域实际上必须具有其阴影所揭示的形状，因为它以完美的圆弧遮蔽了月亮。
快乐是最高的善，我们追求快乐，避免痛苦。
我们越是深入量子世界，就越意识到我们不知道的东西有多少。
We are what we repeatedly do. Excellence, then, is not an act, but a habit.