Marcus Aurelius said this quote

The goal that you hope you will one day arrive at after a long and roundabout journey you are able to possess right now, if only you do not deny it to yourself. That is, if you can let go of the past, entrust the future to Providence and redirect the present according to justice and the sacred. To the sacred, so that you welcome what has been given to you, for Nature has brought this to you, and you to it; and to justice, in order that you may speak the truth freely and without distortion, and that you may act in accordance with what is lawful and right. Do not allow yourself to be hindered by the harmful actions, judgments, or the words of another, or by the sensations of the flesh which has formed itself around you. Let the body take care of those. But if, when you have come to the end, having let go of all other things, you honor only your guiding part and the divinity that is within you, and you do not fear ceasing to live so much as you fear never having begun to live in accordance with Nature--then you will be a man who is worth of the Cosmos that created you; and you will cease to live like a stranger in your own land, that is, surprised at unexpected everyday occurrences and wholly distracted by this and that.