34. The physical co-operation of God and of creatures with the will contributes also to the difficulties existing in regard to freedom. I am of opinion that our will is exempt not only from constraint but also from necessity. Aristotle has already observed that there are two things in freedom, to wit, spontaneity and choice, and therein lies our mastery over our actions. When we act freely we are not being forced, as would happen if we were pushed on to a precipice and thrown from top to bottom; and we are not prevented from having the mind free when we deliberate, as would happen if we were given a draught to deprive us of discernment. There is _contingency_ in a thousand actions of Nature; but when there is no judgement in him who acts there is no _freedom_. And if we had judgement not accompanied by any inclination to act, our soul would be an understanding without will. 35. It is not to be imagined, however, that our freedom consists in an indetermination or an indifference of equipoise, as if one must needs be inclined equally to the side of yes and of no and in the direction of different courses, when there are several of them to take. This equipoise in all directions is impossible: for if we were equally inclined towards the courses A, B and C, we could not be equally inclined towards A and towards not A. This equipoise is also absolutely contrary to experience, and in scrutinizing oneself one will find that there has always been some cause or reason inclining us towards the course taken, although very often we be not aware of that which prompts us: just in the same way one is hardly aware why, on issuing from a door, one has placed the right foot before the left or the left before the right. 36. But let us pass to the difficulties. Philosophers agree to-day that the truth of contingent futurities is determinate, that is to say that contingent futurities are future, or that they will be, that they will happen: for it is as sure that the future will be, as it is sure that the past has been. It was true already a hundred years ago that I should write to-day, as it will be true after a hundred years that I have written. Thus the contingent is not, because it is future, any the less contingent; and _determination_, which would be called certainty if it were known, is not incompatible with contingency. Often the certain and the determinate are taken as one thing, because a determinate truth is capable of being [144] known: thus it may be said that determination is an objective certainty.