大国政治的悲剧在于它导致冲突和战争。
The tragedy of great power politics is that it leads to conflict and war.
The best science is done with both hands dirty and minds clear.
I'm not a person who looks back. I'm always looking forward.
The will of the people, moreover, practically means the will of the most numerous or the most active part of the people; the majority, or those who succeed in making themselves accepted as the majority; the people, consequently may desire to oppress a part of their number; and precautions are as much needed against this as against any other abuse of power. The limitation, therefore, of the power of government over individuals loses none of its importance when the holders of power are regularly accountable to the community, that is, to the strongest party therein
我愿你快乐,即使你的快乐不再是因为我。