"If you feed the cat too much, they won't eat a rat"...I think there may be something profound there:)
I like that he thinks it's important to buy 1 of everything, not buy a TV, then a couple years replace it, etc.
Philosophy of life seems to be important. For him it's christianity. I dont think it has to be a religion though, but some philosophy on how a good life should be seems to be a common thread amongst those who live a very long / happy life.