 Whitehead’s key philosophical concept—the internal relatedness of occasions of experience—distanced him from the idols of logical positivism. Indeed, his reliance on our intuition of the extensive relatedness of events (and hence, of the space-time metric) was at variance with both Poincaré’s conventionalism and Einstein’s interpretation of relativity: his reliance on our intuition of the causal relatedness of events, and of both the efficient and the final aspects of causation, was an insult to the anti-metaphysical dogmas of Hume and Russell; his method of causal explanation was also an antipode of Ernst Mach’s method of economic description; his philosophical affinity with James and Bergson as well as his endeavor to harmonize science and religion made him liable to the Russellian charge of anti-intellectualism; and his genuine modesty and aversion to public controversy made him invisible at the philosophical firmament dominated by the brilliance of Ludwig Wittgenstein.