[424] "Bhikkhus, suppose a man were to reduce this great earth to little balls of clay, each the size of a jujube kernel (kolaṭṭhi), and were to lay them down, saying: 'This is my father; this is my father's father.' The fathers of that man's fathers would not be exhausted, yet this great earth would come to depletion and exhaustion. For what reason? Because, bhikkhus, this saṃsāra is without discoverable beginning; a first point is not discerned of beings roaming and wandering on, hindered by ignorance (avijjā) and fettered by craving (taṇhā). For such a long time, bhikkhus, suffering (dukkha) has been experienced, agony has been experienced, disaster has been experienced, and the charnel ground has been swelled. This is quite enough, bhikkhus, to become disenchanted with all formations (saṅkhārā), enough to become dispassionate toward them, enough to be liberated from them."
The second [sutta].
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.