3.4 - Do not waste the remainder of your life in thoughts about others ... for you lose the opportunity of doing something else when you have such thoughts as these.
3.4 - To care for all men is according to man’s nature; and man should value the opinion only of those who openly live according to nature.
3.5 - Labor willingly and diligently, undistracted and aware of the common interest. ... Be cheerful also, and do not seek external help or the tranquillity that others give. A man then must stand erect, not be kept erect by others.
3.6 - It is not right that anything of any other kind, such as praise from the many, or power, or enjoyment of pleasure, should come into competition with that which is rationally and politically and practically good.
3.7 - Never value anything as profitable that compels you to break your promise, to lose your self-respect, to hate any man, to suspect, to curse, to act the hypocrite, to desire anything that needs walls and curtains.
3.10 - Brief is man’s life and small the nook of the earth where he lives; brief, too, is the longest posthumous fame, buoyed only by a succession of poor human beings who will very soon die and who know little of themselves, much less of someone who died long ago.