雜阿含經 760.p2

760.p2

It was then that the Bhagavān addressed the monks, “The world has three things that are disagreeable, unattractive, and immemorable. What are the three? They are old age, illness, and death. These three things are disagreeable, unattractive, and immemorable. If the world didn’t have these three things that are disagreeable, unattractive, and immemorable, there wouldn’t be a Tathāgata, an Arhat, or a Completely Awakened One who appears in it. The world wouldn’t know there was a teaching, instruction, or guidance taught by the Tathāgata, either. The Tathāgata, the Arhat, and the Completely Awakened One appears in the world because it has these three things that are disagreeable, unattractive, and immemorable, and the world does know that there is a teaching, instruction, and guidance taught by the Tathāgata.”