The second remark relates to the pleasurable quality of games involving use of the reasoning faculty. We have already shown that play with reason takes the form of experimentation with imagination and the other intellectual faculties in their capacity of illusion workers as well as in their more constructive activity; now we find further that its recreative effect is much greater than is realized during the progress of the game, and that the consciousness of standing voluntarily in a world of our own creation may be a feature in the interest excited by the game.[402] The chief source of satisfaction, however, is enjoyment of the fight, in the playful intellectual duel, where bold attack and skilful parry, systematic advance and stubborn resistance, crafty manœuvring and direct assault, single combat and the general skirmish, as well as pursuit and demolition, succeed one another in ever-renewed combinations. In those games which add the charm of uncertainty to the mental contest the effect is of course still more complicated. As I shall have occasion later to speak exhaustively of games of chance, I confine myself here to Lazarus’s significant conclusion from the union of these contrasted forces. “That men, and, indeed, the same man can take pleasure in such opposite and absolutely contradictory principles of play seems wonderful, and yet it is most natural, for both are elements of human nature grounded in the very essence of his being and the normal manner of using his powers. In his serious, moral life, directed by the mandates of duty, he is also controlled by two contrary forces, freedom and necessity. He must bow to Fate and yet strive and struggle for what is his own. He expends his energies according to his own behests, and must then await success and reward till the turn of Fortune’s wheel. Both disappointment and struggle, receiving and expending, suffering and toiling, are woven into the texture of his life and character, and become the sources of his volition as well as the arbiters of his fortune. He obeys both forces; to pursue and hold to what is good is his dual impulse, both in life and in play.”[403] 3. _Physical Rivalry_