Your prof might have just been parroting Grothendieck, who was famous for that: https://en.wikipedia.org/wiki/Alexander_Grothendieck https://en.wikipedia.org/w

Your prof might have just been parroting Grothendieck, who was famous for that: https://en.wikipedia.org/wiki/Alexander_Grothendieck https://en.wikipedia.org/wiki/Alexander_Grothendieck