No one is able to rule unless he is also able to be ruled. - Seneca

That is why we give to children a proverb, or that which the Greeks call Chreia, to be learned by heart; that sort of thing can be comprehended by the young mind, which cannot as yet hold more. For a man, however, whose progress is definite, to chase after choice extracts and to prop his weakness by the best known and the briefest sayings and to depend upon his memory, is disgraceful; it is time for him to lean on himself. He should make such maxims and not memorize them. For it is disgraceful even for an old man, or one who has sighted old age, to have a note-book knowledge. "This is what Zeno said." But what have you yourself said? "This is the opinion of Cleanthes." But what is your own opinion? How long shall you march under another man's orders? Take command, and utter some word which posterity will remember. Put forth something from your own stock.

It doesn’t matter what you bear, it matters how you bear it.

Non privatim solum sed publice furimus. Homicidia conpescimus et singulas caedes: quid bella et occisarum gentium gloriosum scelus? Non avaritia, non crudelitas modum novit. Et ista quamdiu furtim et a singulis fiunt minus noxia minusque monstrosa sunt: ex senatus consultis plebisque scitis saeva exercentur et publice iubentur vetata privatim. Quae clam commissa capite luerent, tum quia paludati fecere laudamus. Non pudet homines, mitissimum genus, gaudere sanguine alterno et bella gerere gerendaque liberis tradere, cum inter se etiam mutis ac feris pax sit. Adversus tam potentem explicitumque late furorem operosior philosophia facta est et tantum sibi virium sumpsit quantum iis adversus quae parabatur acceserat.