Submit to the fate of your own free will.

Nothing befalls a man except what is in his nature to endure.

...the sole thing of which any man can be deprived is the present; since this is all he owns, and nobody can lose what is not his.

Nature which governs the whole will soon change all things which you see, and out of their substance will make other things and again other things... in order that the world may be ever new.

Adapt yourself to the life you have been given; and truly love the people with whom destiny has surrounded you.

Frequently consider the connection of all things in the universe. .. We should not say 'I am an Athenian' or 'I am a Roman' but 'I am a citizen of the Universe.

Remember that even if you were to live for three thousand years, or thirty thousand, you could not lose any other life than the one you have, and there will be no other life after it. So the longest and the shortest lives are the same. The present moment is shared by all living creatures, but the time that is past is gone forever. No one can lose the past or the future, for if they don't belong to you, how can they be taken from you?