Man alone has Freewill. Compare him with other creatures and see the difference.

For examine all those variations which I mentioned above, and see that they do not exist in any 'bound Natures,' not in the sea nor on the dry land, not in the luminaries nor in the stars, not in trees nor in roots ; nor even in animals—and yet there is sensation in animals—nor even in birds, though they have sight and hearing. But if hawks are birds of prey, they are all birds of prey; if wolves are destructive, they are all ravagers; and if lambs are harmless, they are all innocent, and if serpents are cunning, that subtlety belongs to all; but man, owing to his Freewill, can be like them all, while they cannot become like him. On this account they have a (fixed) Nature, while we have Freewill.