追求权力是国际体系中各国的首要目标。
The pursuit of power is the primary goal of states in the international system.
无人机的价值不在于飞行，而在于落地。
I don't have to prove anything to anyone. There's nothing to prove.
The more you give, the more you receive
Everyone seems to have a clear idea of how other people should lead their lives, but none about his or her own.