Labour not unwillingly, nor without regard to the common interest, nor without due consideration, nor with distraction; nor let studied ornament set off thy thoughts, and be not either a man of many words, or busy about too many things. And further, let the deity which is in thee be the guardian of a living being, manly and of ripe age, and engaged in matter political, and a Roman, and a ruler, who has taken his post like a man waiting for the signal which summons him from life, and ready to go, having need neither of oath nor of any man's testimony. Be cheerful also, and seek not external help nor the tranquility which others give. A man then must stand erect, not be kept erect by others.
If thou workest at that which is before thee, following right reason seriously, vigorously, calmly, without allowing anything else to distract thee, but keeping thy divine part pure, as if thou shouldst be bound to give it back immediately; if thou holdest to this, expecting nothing, fearing nothing, but satisfied with thy present activity according to nature, and with heroic truth in every word and sound which thou utterest, thou wilt live happy. And there is no man who is able to prevent this.