Ambition means tying your well-being to what other people say or do. Self-indulgence means tying it to the things that happen to you. Sanity means tying it to your own actions.

All things fade and quickly turn to myth.

Be satisfied with your business, and learn to love what you were bred to.

If thou workest at that which is before thee ... 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.

Embellish the soul with simplicity, with prudence, and everything which is neither virtuous nor vicious. Love all men. Walk according to God; for, as a poet hath said, his laws govern all.

Limit time to the present. Meditate upon your last hour.

Consider, for example, and you will find that almost all the transactions in the time of Vespasian differed little from those of the present day. You there find marrying and giving in marriage, educating children, sickness, death, war, joyous holidays, traffic, agriculture, flatterers, insolent pride, suspicions, laying of plots, longing for the death of others, newsmongers, lovers, misers, men canvassing far the consulship and for the kingdom; yet all these passed away, and are nowhere.