Don't praise the day until sunset
The children of lovers are orphans (not so much a proverb as a truism)
E'en the richest man should save a little.
And whakatauaki from te ao Maori:
Marry a man with calloused hands. (marry a hard worker)
With your food basket and my food basket we can feed everyone (working together is the best way)
If you bow your head, let it be to a lofty mountain.
(show respect to those who deserve it)
And one heard in all major speeches.
"He aha te mea nui o tea ao? He tangata, he tangata, he tangata."
What is the most important thing in the world? It is people, people, people.