لماذا عندما كان لدينا هاتف روتاري و كان الناس لازالوا يُشلّون بسبب مرض شلل الأطفال، كنّا ندرّس بنفس الطريقة التي ندرّس بها الآن؟
Why is it that when we had rotary phones, when we were having folks being crippled by polio, that we were teaching the same way then that we're doing right now?