最终，我们记住的不是敌人的话语，而是朋友的沉默。

The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.

积极性让我们变得更好。通过打开我们的心灵和思想，积极情绪让我们能够发现和建立新的技能、新的联系、新的知识和新的存在方式。

做伟大工作的唯一途径就是热爱你所做的事。

Innovation in refining isn't about reinventing the wheel; it's about making the wheel turn cleaner and smarter.