Zeno and Chrysippus

Stoics hold on to both determinism and contingency in the world. But everything you do is still necessary in a different sense, they say. The later platonist author plotinus complained that the stoic view makes humans out to be little more than stones being rolled along. Rather ironic in light of chrysippus analogy of the cylinder and cone. Though the stoics would admit that we are guaranteed to do whatever divine fate decrees for they point out that part of what is faded is our own internal attitude and character.