An saying,"there are no wholly altrustic,unselfished acts;every human deed is founded upon an ulterior selfish motive",which trigger my memory of the scene of the awkward situation.
one day,i jump to the public transport before it was ready to leaving,I did not realize that i did not have any small change in my pocket until the bus driver asked me to pay the fare.To my embarrassed,the driver said it again,I did not know how to deal with it.Fortunately,a young lady wlaked to me,and spoke to the driver that she would paid for me.At the moment,I was deeply moved by her behaviors,of course,not just in difficulties in the timely help from her,but also her altrustic.