A Thessalian brought an exceptionally beautiful horse, named Bucephalus, to the Macedonian court, offering to sell it to King Philip. However, when the royal grooms tried to test its paces it proved wild and unmanageable. The young Alexander asked his father for permission to try his skill. Philip reluctantly agreed, saying that if the prince failed to ride Bucephalus he was to pay his father a forfeit equal to its price. Alexander walked quickly to the horse’s head and turned it to face into the sun, for he had noticed that the horse’s own shadow was upsetting it. He calmed it, then mounted it, and Bucephalus obediently showed off his paces.

The court, which had feared for the prince’s safety, broke into loud applause. Philip was overjoyed. He kissed his son, saying, “Seek another kingdom that may be worthy of your abilities, for Macedonia is too small for you.” (The Little, Brown Book of Anecdotes, ed. Clifton Fadiman)