I was reminded of an Einstein quote I'd heard multiple times before. Apparently there is some debate over this, but it has been claimed he said that, apart from

I was reminded of an Einstein quote I'd heard multiple times before. Apparently there is some debate over this, but it has been claimed he said that, apart from maths, all physical theories "ought to lend themselves to so simple a description 'that even a child could understand them.' Other physicists have said similar; while still others, like Feynman, have said what sounds like the opposite. Source: https://skeptics.stackexchange.com/a/22410 https://skeptics.stackexchange.com/a/22410