Nothing can be more impressive that an unpretentious act of kindness from a stranger. The other day I was at a train station and saw a passenger struggling to buy a ticket from the ticket machine with her credit card and it was an unsuccessful attempt and she had no cash and could not find a cash machine and the train approaching any minute; she was frustrated; suddenly another passenger bought her the ticket and while giving it to her said: "You do it for another person."And left, she did not wait to be thanked. And once I was on a bus and saw an old man got off the bus several stops earlier just to help a stranger who was looking for an address. Beautiful and unpretentious acts of kindness from strangers is what make the ultimate chain of kindness.