Every drop of oil should be used efficiently and responsibly.
每一滴石油都应该被高效和负责任地使用。
相对论不仅仅是一个科学理论，而且是一个哲学理论。
I know that self-promotion happens a lot and it is not a bad thing. But I do not regard it as something positive.
要有勇气追随心声，听从直觉--它们在某种程度上知道你想成为的样子。其他事情都是其次的。
We must strengthen international energy cooperation with an open and collaborative attitude to achieve mutual benefits.
一个人对自己的态度是过上长寿且相对幸福生活的最重要因素。
