Some people think money is the key to make friends.But i don not think so .i think money can't buy anything including the friendship.A person may be fithy rich,but he haven't got a lot of friends,let alone best friends.As the going says:"He sits no sure that sits too high."(此句是谚语,高处不胜寒 不知道你们用伐,不用的话删掉也无所谓）Most people have not own a lot of money,but theg have a lot of friends.Friendship is without price.So,in my opion ,friendship can be gained with your true heart.