In your conversation, avoid talking at length or overmuch about your own exploits or the dangers that you’ve faced; for pleasant though it may be for you to recall your perils, it is not as for others to listen to everything that has happened to you.
Men seek for seclusion in the wilderness, by the seashore, or in the mountains – a dream you have cherished only too fondly yourself. But such fancies are wholly unworthy of a philosopher, since at any moment you can choose to retire within yourself. Nowhere can man find a quieter or more untroubled retreat than in his own soul; above all, he who possesses resources in himself, which he need only contemplate to secure immediate ease of mind – the ease that is but another word for a well-ordered spirit. Avail yourself often, then, of this retirement, and so continually renew yourself.
Give your heart to the trade you have learnt, and draw refreshment from it. Let the rest of your days be spent as one who has wholeheartedly committed his all to the gods, and is thenceforth no man’s master or slave.
Facts stand wholly outside our gates; they are what they are, and no more; they know nothing about themselves, and they pass no judgement upon themselves. What is it, then, that pronounces the judgement? Our own guide and ruler, Reason.
Marcus Aurelius (AD 120 – 180), Meditations (9.15)