Stay hungry for knowledge, and you’ll never run out of opportunities.
保持对知识的渴望，你将永远不会缺乏机会。
能源的真实成本必须同时考虑其生产和遗留影响。
I would say that in the long run probably Communist China is likely to be in more of an expansionist phase than Soviet Russia...In their tactics, the Chinese Communists are probably the greater menace;
Sustainability isn't an option; it's a necessity for survival.
The purpose of morality is to teach you, not to suffer and die, but to enjoy yourself and live.