Different Perception

Three people were laying bricks and a passerby asked them what they were doing. The first one replied, "Don't you see I am making a living?" The second one said, "Don't you see I am laying bricks?" The third one said, "I am building a beautiful monument." Three people doing the same thing gave totally different replies. The question is : did they have different attitudes? And would their attitude affect their performance? The answer is a clear yes

Source-You Can Win(Shivkher)