In the history of philosophy the seventeenth century is associated with the names of Descartes, Hobbes, Spinoza, Leibniz and Locke. The doctrines of these philosophers mark a momentous turning-point in European thought: they were developed in close interrelation with the contemporary ‘scientific revolution’; they introduced new basic concepts and methods of knowledge; they also had a profound effect upon the course of modern philosophy as a whole.

The process which led to the Cartesian interpretation of the world had two main aspects. In the first place, the conception of nature as an organism, characteristic of the early phase of Renaissance thought, gave way to the view that all phenomena are to be conceived on the analogy of the movements of a machine. Accordingly, on this view, causes were antecedent motions and, as such, efficient causes: all physical change was explained as the effect of the motions and impacts of matter in space and time. In proportion as the mechanistic view prevailed, the appeal of the traditional doctrine of final causes, namely the doctrine that processes in nature are directed by a tendency to attain a specific end, diminished. The new method of explanation was also attractive because it seemed particularly successful. It enabled a scientist not only to interpret but, in Francis Bacon's phrase, to dominate nature. The underlying assumption was that, if it is known how phenomena are generated, it is possible to predict them on any particular occasion and in this sense to gain power over nature.