大国政治的悲剧在于，即使是善意的国家也被迫采取可能导致冲突和战争的行为。
The tragedy of great power politics is that even well-intentioned states are forced to act in ways that can lead to conflict and war.
The most powerful way to change someone is to change the way you interact with them.
老百姓可以长久没有财物，但不能一天没有饭吃。
You must be the change you wish to see in the world.
写作的艺术是发现一个人所相信的东西的艺术。
我一直在思考如何使电池更安全、更高效。