Episode 25: "Enough" is a psychological quantity

"Enough" is a quantity that does not exist in reality. So
applying the modifier to other things -- enough money, enough
achievement, enough power -- is technically inaccurate. Rather,
"enough" is a concept that exists in our minds. It's a decision
-- supported by an act of the will -- that our current
circumstances are sufficient. Understanding this distinction
opens the possibility for greater contentment and happiness in
our lives.