231. In the Stoic explanation of the universe fortune plays no part; it has no existence in the absolute sense of the term[73]. But in practical life, and from the limited point of view of the individuals concerned, fortune is everywhere met with. Her actions are the same as we have just seen to be ascribed to ‘natural necessity’; storms, shipwrecks, plagues, wars, and tyranny[74]. Fortune therefore by no means excludes causality, but includes all events which are without meaning from the point of view of the individual[75]; all advantages or disadvantages which he has not personally merited, and which are not designed for his individual discipline. So great is the sphere of Fortune, that it appears at first that she is mistress of human life; and we may picture her as a tyrant, mocking and merciless, without principle and without policy[76]. The further consideration of Fortune belongs to the department of Ethics.
Has God or man free will?
232. The supreme problems of philosophy, in their relation to gods and men, the fellow-citizens of this universe, centre in the question of free will. If we grant that the divine power is to some extent less in range than the power of necessity, does it still remain open to us to attribute to it within that range some real choice between alternatives, something of that individual power which common opinion attributes to kings? or must we on the other hand regard the divinity as a mere symbol of an unchanging law, girt with the trappings of a royalty from which all real share in government has been withdrawn? Is man again a mere puppet under the control either of fate or of fortune, or has he too some share in creating the destiny to which he must submit? Supposing him to have this power of will, is it bound up with his privilege of reason, or do the animals also possess it?
The Stoics incline towards free will.
233. To such questions the Stoics do not give the direct answer ‘Yes’ or ‘No.’ The critics who wish to tie them down to one or other of the opposing views complain that they wriggle and grow flushed and excited about their answer[77]. They accept apparently both views as dogmas, asserting that ‘all things take place by destiny’ and that ‘something rests with us[78].’ To the first dogma the whole of their treatment of physics points; but the second is required as a postulate for any science of ethics[78a]. The Stoics were in no way disposed to cut the knot by sacrificing one or the other of the principal parts of their philosophy. They go back upon the terms in which the questions are propounded, and endeavour by fresh investigation and more precise definition to do away with the obvious contradiction. In this work they were observed to have a bias in favour of free will[79]. The first sign of this bias we have already noticed in the vindication of the word ‘possible[80].’ If our eyes are fixed merely on the movement of the heavenly bodies, we shall hardly need a term which prints on future events a character which it denies to those that are past. The astronomer can describe to us with equal precision an eclipse taking place a thousand years before the battle of Salamis or a thousand years after. But the word ‘possible’ opens the door to the emotions of hope and fear, to the sense of right and wrong, with regard to the whole range of future events. However delicately the doctrine may be shaded, the main issue is determined when we say of gods and men that they ‘can[81].’
Proximate and principal causes.
234. In order to reconcile the doctrines of causality and possibility, we must first distinguish between outer and inner compulsion, between ‘proximate’ and ‘principal’ causes. If a boy starts a cylinder rolling down hill, he gives it an opportunity without which it could not have rolled; this is the proximate cause (προκαταρκτική, proxima). But the cylinder would not continue rolling except by an inner compulsion, a law within itself, by which it is the nature of cylinders to roll downwards[82]. This is the leading or principal cause (προηγουμένη, antecedens or principalis). So neither in thought nor in action can a man form a judgment, unless there be a picture (φαντασία, visum) presented to his mind. The picture is a proximate cause[83]. But assent to the picture rests with the man himself; the man himself, his reason, his will, is the principal cause. Here we touch on the dogma which is the foundation of ethics: ‘assent is in our power.’ Upon this rests the right of the philosopher to praise or blame, the right of the lawgiver to reward and punish.
The divine nature immutable.
235. We have to investigate further the inner compulsion, the principal cause. With regard to the gods their own disposition is a law to them, their character holds them to their purpose, their majesty makes their decrees immutable[84]. This is the final answer of philosophy, even though men cannot content themselves with it. Even amongst those most disposed to accept Stoic principles, there is a wish that the gods should be allowed a little play, a choice at any rate in small matters not hampered by considerations of destiny and morality[85]; and upon this issue the poet may deviate a little from the sterner creed of the philosopher[86]. Nor must we so interpret the wisdom and benevolence of the gods as to deny the efficacy of prayer[87].