> If you can't explain it to a six year old, you don't understand it yourself. Perhaps this one? I pulled it from memory, even though I couldn't remember the a

> If you can't explain it to a six year old, you don't understand it yourself. Perhaps this one? I pulled it from memory, even though I couldn't remember the author. Google attributes it to Einstien. But the interwebs misattributes quotes all the time, so take it with a grain of salt.