Ngā hua rapu - "Causa. Causa Eficiente."

Kāore he hua

Kāore tō rapu - "Causa. Causa Eficiente." - i ōrite ki tētahi rauemi.

Me whakawhānui atu pea i tō rapu ki teto Ngā āpure katoa.

Ka taea pea ētahi hua anō mā te whakakē i tō uiui rapu.