I remember when I was a kid, I'd heard various things about how Einstein failed school or was bad at mathematics or was just a simple patent office clerk etc et

I remember when I was a kid, I'd heard various things about how Einstein failed school or was bad at mathematics or was just a simple patent office clerk etc etc... Seems he was in fact super smart and educated at good schools / universities in the countries he lived in. As you'd expect from someone who revolutionised parts of science.