Albert Einstein is often credited with saying “Everything should be made as simple as possible, but no simpler”. However, in researching the quote on Wikiquote, I discovered the full quote is actually:

The supreme goal of all theory is to make the irreducible basic elements as simple and as few as possible without having to surrender the adequate representation of a single datum of experience.

I think it’s funny that the canonical quote on simplicity is actually a simplified version of a significantly more verbose quote.