The difference between Peter and I

My young brother Peter is smart and good at memory. But I am stupid and poor at memory. Peter can answer all the questions quickly and properly. He remebers all the things whom he hears. My response is slow and I do everything slowly. I often forget the thing whom I've just heard. Beside, Peter is illtempered and impatient. He easily gets angry and he can never wait in a queue for a long time. I am patient and seldom lose my temper.