The most important political challenge of our time is to create strong, effective, and accountable states.
The key to sustainable development is to balance economic growth and environmental protection.
Computation has made the tree flower.
Do not do to others what angers you if done to you by others.
過去從未消逝，它甚至還未成為過去。
我們會(huì)死。那可能是生命的意義。但我們使用語言。那可能是我們生命的尺度。
數(shù)學(xué)是一門活生生的學(xué)科，不斷演變和發(fā)展。