Acceptance

[...],Jubal said to Duke, "where the hell have you been?"
"thinking"
"Doesn't pay. Makes you discontented. Any results?"
"yes," said Duke, "I've decided that what Mikes eats is his own business."
"Congratulations! A desire not butt into other people's business is eighty percent off all human wisdom." [...]

"Stranger in a Strange Land" Heilein