《沉思录·卷四·退隐于自己的心》第12条
A man should always have these two rules in readiness; the one to do only whatever the reason of the ruling and legislating faculty may suggest for the use of men; the other, to change thy opinion, if there is any one at hand who sets thee right and moves thee from any opinion. But this change of opinion must proceed only from a certain persuasion, as of what is just or of common advantage, and the like, not because it appears pleasant or brings reputation.
注释摘要
奥勒留在这一条里提出两条随身携带的自律原则，第一条是行动准则，第二条是认知准则，二者合在一起构成完整的实践理性态度。 第一条规则说，只做统治与立法能力所建议的、对人有用的事。这里“统治与立法能力”译自希腊文里的hegemonikon，即人的主宰能力，也就是理性。在斯多葛哲学里，主宰能力是灵魂的指挥中枢，负责形成判断、下达行动指令，并且区分什么在自己权能之内…