Which is the best evidence that the Maori value familial relationships?

Tû, the first son, decided that he and his brothers must act.
Then Tû tried with all his might, using all of his ferocious strength until he fell to the ground with his brothers.
Slowly but surely, he pushed his legs upward until his parents were wrenched apart.
Even now, Papa and Rangi continue to express their love for one another.