Everything in the world has progressed through practice. Just like that. Practice removing evil and bringing in goodness. Don't think about the disturbance. Don't listen to it. Just like you run away when you see a snake, run away like that.
If someone speaks ill of someone then we should not listen to it. We are also like that. What should we listen to him? Who are we to be pure? Grandfather of great men? You are speaking ill of him and I should sit and listen? Why does it concern me?