Patience pays !!

I have been observing the attitute of my prof since 6 months .. initially he was very irritated towards me .. not happy with whatever I do .. did not have faith in me .. that I was working well .. etc .. but what could I do !! .. i was working .. I tried to improve .. and did whatever I can do .. and the most important thing was that ..even though all the people around me were abusing him .. and were saying that is how he is etc! .. I remained silent and unperturbed .. telling myself that is all for me !! .. finally .. recently .. i have noticed that he started being a bit calm and composed .. now he doesnt shout saying .. "this is not how it has to be done" .. "you are still not getting what I want to say " .. etc .. he seems to have finally realised that .. it was not my mistake .. and I have done all I could do ..