Reverence the faculty which produces opinion. On this faculty it entirely depends whether there shall exist in thy ruling part any opinion inconsistent with nature and the constitution of the rational animal. And this faculty promises freedom from hasty judgement, and friendship towards men, and obedience to the gods.
What is evil to thee does not subsist in the ruling principle of another; nor yet in any turning and mutation of thy corporeal covering. Where is it then? It is in that part of thee in which subsists the power of forming opinions about evils. Let this power then not form such opinions, and all is well. And if that which is nearest to it, the poor body, is burnt, filled with matter and rottenness, nevertheless let the part which forms opinions about these things be quiet, that is, let it judge that nothing is either bad or good which can happen equally to the bad man and the good. For that which happens equally to him who lives contrary to nature and to him who lives according to nature, is neither according to nature nor contrary to nature.
Judge every word and deed which are according to nature to be fit for thee; and be not diverted by the blame which follows from any people nor by their words, but if a thing is good to be done or said, do not consider it unworthy of thee. For those persons have their peculiar leading principle and follow their peculiar movement; which things do not thou regard, but go straight on, following thy own nature and the common nature; and the way of both is one.