While at sail a Captain of a steamship hears a distress call. Captain, Captain you must alter your course by 10 degrees, you are in danger of collision. To which the Captain replies, I am a mighty steamship sound and sturdy, I say to you, if my path indangers you, you should alter your course, I will not. The voice once again cries out captain captain you must take heed and change your course by twenty degress, you are in danger of collision. The crusty ol capatin replies, I am at sail and will not change. I am a might and fierce steam ship. The voice replies, yes you are a steamship, but I am a lighthouse.