We begin to die from the moment we are born, for birth is the cause of death. The nature of decay is inherent in youth, the nature of sickness is inherent in health, in the midst of life we are verily in death.
Everything that depends on the action of nature is by nature as good as it can be, and similarly everything that depends on art or any rational cause, and especially if it depends on the best of all causes.
The cause being finite, the effect must be finite. If the cause is eternal the effect can be eternal, but all these causes, doing good work, and all other things, are only finite causes, and as such cannot produce infinite result.
Those which are produced from causes are not produced. they do not have an inherent nature of production. those which depend on causes are said to be empty; those who know emptiness are aware.
If goodness has causes, it is not goodness; if it has effects, a reward, it is not goodness either. So goodness is outside the chain of cause and effect.