"Bhikkhus, form is not-self. Were form self, then this form would not lead to affliction, and one could have it of form: 'Let my form be thus, let my form be not thus.' And since form is not-self, so it leads to affliction, and none can have it of form: 'Let my form be thus, let my form be not thus.' " - SN 22, Anatta-lakkhana Sutta
"Medicine and sickness heal each other. The whole world is medicine. What am I?" - 9th c. Chan master Yunmen Wenyan
