If you can dream it, you can achieve it.
The past is always tense, the future perfect.
The key to sustainable development is to balance economic growth and environmental protection.
History doesn’t repeat itself, but it often rhymes.
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.