Aurelius, Meditations §aur_10_xi: To find out, and set to thyself some certain way and method of contemplation,...

To find out, and set to thyself some certain way and method of contemplation, whereby thou mayest clearly discern and represent unto thyself, the mutual change of all things, the one into the other. Bear it in thy mind evermore, and see that thou be throughly well exercised in this particular. For there is not anything more effectual to beget true magnanimity.