Oh, how foolish I was. It took  further long 20 years to learn thai really I was a fool. It took long 20 years to learn that teachers , by virtue of their being teachers could not harm their students in any way .To-day I realise that anger is not guarantee of truth.Simply because I have grown angry over some thing does not prove that I am correct.Still more is the fact that it may take years to know that I was really wrong .Men learns from mistakes.But it takes years to identify mistake as mistake.