Marcus Aurelius
Meditations 7.29
Wipe out the imagination. Stop the pulling of the strings. Confine thyself to the present. Understand well what happens either to thee or to another. Divide and distribute every object into the causal [formal] and the material. Think of thy last hour. Let the wrong which is done by a man stay there where the wrong was done.
Marcus Aurelius, Meditations 7.29, translated by George Long
Efface imagination! Cease to be pulled as a puppet by thy passions. Isolate the present. Recognize what befalls either thee or another. Dissect and analyze all that comes under thy ken into the Causal and the Material. Meditate on thy last hour. Let the wrong thy neighbour does thee rest with him that did the wrong.
Marcus Aurelius, Meditations 7.29, translated by C. R. Haines