From his home in a gated community on an exclusive island off Miami Beach, a man in white tennis shoes gazes out on the calm water of Biscayne Bay. How he wishes his life could be as tranquil. For in spite of this man’s professedly peace-loving ways, his 84 years have been routinely punctuated by battle over such key points of principle as whether he or Bill Ackman is the bigger asshole. No, the only combat Icahn he now wishes to engage in is on the fairways, shuffleboard and tennis courts of the Indian Island Country Club.