We are used to discounting the river-gods and dryads of the Greeks as poetical fancies, and even the chief figures in the classical Pantheon-Venus, Minerva, Mars, and the rest-as allegories. But, forgetting that they once carried as much sanctity as our saints and divinities, we refrain from applying the same reasoning to our own objects of worship.

How unfortunate for mankind that the Lord is reported by Holy Writ as having said 'Vengeance is mine!'

Many people assert that this abandonment of the god hypothesis means the abandonment of all religion and all moral sanctions. This is simply not true. But it does mean, once our relief at jettisoning an outdated piece of ideological furniture is over, that we must construct something to take its place.

Words are tools which automatically carve concepts out of experience.

It is essential for evolution to become the central core of any educational system, because it is evolution, in the broad sense, that links inorganic nature with life, and the stars with the earth, and matter with mind, and animals with man. Human history is a continuation of biological evolution in a different form.

We all know how the size of sums of money appears to vary in a remarkable way according as they are being paid in or paid out.

Evolution: The Modern Synthesis.