We find the same inclination even in worms and insects. An ant has the same desire. We try to touch it, but it does not want us to touch it. We attempt to keep it in a certain place, but it does not want to stay there. However much we may say we will take great care of the parrots and the sparrows and the beautiful birds we keep in cages, saying we love them so much, it is no pleasure to them. Of course they will eat in their captivity if they are hungry; they will drink water when they are thirsty; but this is no sign that they enjoy themselves or that they are happy.