Organic life, we are told, has developed gradually from the protozoon to the philosopher, and this development, we are assured, is indubitably an advance. Unfortunately it is the philosopher, not the protozoon, who gives us this assurance.

An extra-terrestrial philosopher, who had watched a single youth up to the age of twenty-one and had never come across any other human being, might conclude th…

Ethics is in origin the art of recommending to others the sacrifices required for co-operation with oneself.

If any philosopher had been asked for a definition of infinity, he might have produced some unintelligible rigmarole, but he would certainly not have been able…

That's not it. That's not it at all. You always have a tendency to add. But one must be able to subtract too. It's not enough to integrate, you must also disin…

There is one living spirit, prevalent over this world ... which assumes a multitude of forms according to subordinate laws. There is one thinking sensible prin…

We are inescapably the result of a long heritage of learning, adaptation, mutation and evolution, the product of a history which predates our birth as a biolog…