Indian Philosophy » Causality » Dependent origination (pratītyasamutpāda) » Origination and conditioned phenomena (saṃskṛta) » Refutation: origination, duration and cessation are untenable » Origination is untenable » Argument from regressus ad infinitum » Untenability of origination in the three times » Arising does not have a self-nature and therefore is non-existent, as it does not arise, like a hare's horn