The very existence of libraries affords the best evidence that we may yet have hope for the future of man.

经济周期并不像曾经认为的那样仅仅是围绕稳定趋势的波动，而是反映了经济中更深层次的结构性变化。

The best way to measure how much you've grown isn't by inches or the number of laps you can now run around the track, or even your grade point average - though those things are important, to be sure.It's what you've done with your time, how you've chosen to spend your days, and whom you've touched this year. That, to me, is the greatest measure of success.

我们必须在经济增长和环境保护之间取得平衡，以确保海洋保持活力。