Although both Holmes and Watson are very intelligent men, Sherlock is much more observant while lacking in basic literature, philosophy, and politics. When Watson brings up that the Earth travels around the sun, he is dumbfounded when Sherlock has no knowledge of the subject. While Watson's moods are more constant and stable, Sherlock's moods are really wild. In one moment he is eccentric and lively while in another, he's thoughtful and dazed. Both men have an appreciation for music, while Sherlock plays the violin and Watson only listens. Both men were in search of a home that has comfortable rooms at a reasonable price. Sherlock Holmes is described as being too scientific to the point of cold-bloodedness and having a passion for definite and exact knowledge. Watson is described as being a man of the medical type but with the air of a military man. Both have an unarguably respect for the other.