You are right sir

If man is good by nature then believe me we wouldn't have to stress so much on the matters of life, everything would have been easier and we would have easily cooperated more

Yeah! Man is born innocent and pure but man grows up wanting more and been selfish and egocentric, thats why success will not be easily achieved, bcs the success of every association is determined by how well the people communicate and cooperate. That's is why it is "called Team work "