All things of the body stream away like a river, all things of the mind are dreams and delusion; life is warfare, and a visit to a strange land; the only lasting fame is oblivion.

— Marcus Aurelius

A man must stand erect, not be kept erect by others.

— Marcus Aurelius

A man's happiness: to do the things proper to man.

— Marcus Aurelius

A man should always have these two rules in readiness. First, to do only what the reason of your ruling and legislating faculties suggest for the service of man. Second, to change your opinion whenever anyone at hand sets you right and unsettles you in an opinion, but this change of opinion should come only because you are persuaded that something is just or to the public advantage, not because it appears pleasant or increases your reputation.

— Marcus Aurelius

A man should remove not only unnecessary acts but also unnecessary thoughts for then superfluous activity will not follow.

— Marcus Aurelius

A man's life is what his thoughts make it.

— Marcus Aurelius

A man's worth is no greater than his ambitions.

— Marcus Aurelius

A man's worth is no greater than the worth of his ambitions.

— Marcus Aurelius

A man’s worth is no greater than the worth of his ambitions.

— Marcus Aurelius

And in the case of superior things like stars, we discover a kind of unity in separation. The higher we rise on the scale of being, the easier it is to discern a connection even among things separated by vast distances.

— Marcus Aurelius