開頭講個(gè)故事,先吸引觀眾.例如：
勇氣 Courage (馬克-吐溫)
In the matter of courage we all have our limits.There never was a hero who did not have his bounds.I suppose it may be said of Nelson and all the others whose courage has been advertised that there came times in their lives when their bravery knew it had come to its limit.
I have found mine a good many times.Sometimes this was expected--often it was unexpected.I know a man who is not afraid to sleep with a rattle-snake,but you could not get him to sleep with a safety-razor.