There are certain rivals who may differ on the issues, and in style and background and even basic attitude, yet understand and respect one other. For they belong to the same club -- the fraternity of the great. Few historic figures would seem to have less in common than Winston Churchill, who championed the British Empire, and Mahatma Gandhi, who led India's struggle for independence from it. But whatever their differences on that great issue, they were bound together by a mutual respect for each other, despite anything they might have said in the heat of the moment. If...