"But one thing can be agreed upon. They were horses of entirely different types. Man o’ War was an equine giant - not a monstrosity but a very big horse, standing 16.2, muscled enormously, and full of the flaming spirit of the Fair Plays. His action was high and his courage matched it, and when he had a horse to go with him, he did not run as much as hurtle. A man who had seen Man o’ War once did not need to be a horseman to recognize him again, for perhaps no horse of at least this century had the carriage, the power, and the exuberant vitality of Fair Play’s mighty son.
Citation, on the other hand, is not particularly a striking horse, though this is not to be considered as any criticism of his appearance. He is a very smooth, very bloodlike dark bay, just over 16 hands, almost perfect in conformation, which means that no one feature stands out over another, and with a beautifully chiseled head. The nostrils are large and flaring, the eyes unusually large and expressive. His expression is extremely intelligent…
Man o’ War did everything with a flair; Citation does it with quiet perfection. Man o’ War ran with a lavish expedition of strength, almost of brute strength, his head high and his copper mane flaring. Citation moves like a frictionless machine. Man o’ War would bolt his food if he wasn’t watched, just as he tore into everything. citation eats as much as his trainer likes, but he isn’t ravenous. His disposition is quiet, though occasionally he would kick a bit in the winner’s enclosure after a long race, and nothing which goes on in the stable upsets him.”
- Joe H. Palmer, American Race Horses 1948