You know,In this world there are always two things there(till one final day...)Light and dark,good and bad,blabla...
The two great categories that I want to say something is about Wise/Fool students..Are you there??nice(sorry,I have seen some one sleeping over there...attention please!)Let's see the two in simple MATHS form...
Teacher: What is your favourite mathematical theory or calculation?
Fool student: 1+1=1
Teacher:You are wrong,Did I teach you this ???
F.S:Yes!
Teacher:where and when?
F.S:'last year,I was late and I knocked the door.You came and said'You idiot!I told you not to be late...you know you are like the form 1+1=1,because your mother and father got you but you had nothing new...just 1 but other students are...1+1=2,3,4,5,6....UNDERSTAND!'and I said to you yes,YES!!!