I've always heard that attributed to Dr. Seuss, but it looks like that's disputed: https://en.wikiquote.org/wiki/Dr._Seuss#Disputed https://en.wikiquote.org/wik

I've always heard that attributed to Dr. Seuss, but it looks like that's disputed: https://en.wikiquote.org/wiki/Dr._Seuss#Disputed https://en.wikiquote.org/wiki/Dr._Seuss#Disputed I like to think it was Seuss, but to be honest it doesn't sound very Seuss-ian.