The advantages of the fearful temperament, if it is not a mere unmanning and desolating dread, are not to be overlooked. Fear is the shadow of the imaginative, the resourceful, the inventive temperament, but it multiplies resource and invention a hundredfold. Everyone knows the superstition which is deeply rooted in humanity, that a time of exaltation and excitement and unusual success is held to be often the prelude to some disaster, just as the sense of excitement and buoyant health, when it is very consciously perceived, is thought to herald the approach of illness. "I felt so happy," people say, "that I was sure that some misfortune was going to befall me--it is not lucky to feel so secure as that!" This represented itself to the Greeks as part of the divine government of the world; they thought that the heedless and self-confident man was beguiled by success into what they called ubris, the insolence of prosperity; and that then atae, that is, disaster, followed. They believed that the over-prosperous man incurred the envy and jealousy of the gods. We see this in the old legend of Polycrates of Samos, whose schemes all succeeded, and whose ventures all turned out well. He consulted a soothsayer about his alarming prosperity, who advised him to inflict some deliberate loss or sacrifice upon himself; so Polycrates drew from his finger and flung into the sea a signet-ring which he possessed, with a jewel of great rarity and beauty in it. Soon afterwards a fish was caught by the royal fisherman, and was served up at the king's table--there, inside the body of the fish, was the ring; and when Polycrates saw that, he felt that the gods had restored him his gift, and that his destruction was determined upon; which came true, for he was caught by pirates at sea, and crucified upon a rocky headland. No nation, and least of all the Greeks, would have arrived at this theory of life and fate, if they had not felt that it was supported by actual instances. It was of the nature of an inference from the facts of life; and the explanation undoubtedly is that men do get betrayed, by a constant experience of good fortune, into rashness and heedlessness, because they trust to their luck and depend upon their fortunate star. But the man who is of an energetic and active type, if he is haunted by anxiety, if his imagination paints the possibilities of disaster, takes every means in his power to foresee contingencies, and to deal cautiously and thoroughly with the situation which causes him anxiety. If he is a man of keen sensibilities, the pressure of such care is so insupportable that he takes prompt and effective measures to remove it; and his fear thus becomes an element in his success, because it urges him to action, and at the same time teaches him the need of due precaution. As Horace wrote: "Sperat infestis, metuit secundis Alteram sortem."