‘One who would converse about human beings should look on all things earthly as though from some point far above, upon herds, armies, and agriculture, marriages and divorces, births and deaths, the clamour of law courts, deserted wastes, alien peoples of every kind, festivals, lamentations, and
markets, this intermixture of everything and ordered combination of opposites.’ - Plato

Think of substance in its entirety, of which you have the smallest of shares; and of time in its entirety, of which a brief and momentary span has been assigned to you; and of the works of destiny, and how very small is your part in them. (5.24)

You can rid yourself of many useless things among those that disturb you, for they lie entirely in your imagination; and you will then gain for yourself ample space by comprehending the whole universe in your mind, and by contemplating the eternity of time, and observing the rapid change of every part of everything, how short is the time from birth to dissolution, and the illimitable time before birth as well as the equally boundless time after dissolution.- Marcus Aurelius