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 to give a definition that had any meaning at all.

In 1896 he taught German social democracy at the London School of Economics where he also lectured on the science of power in the autumn of 1937. However his books were sold at auction to raise the money. He was a member of the Advisory Council of the British Humanist Association and President of Cardiff Humanists until his death.

Bertrand Arthur William Russell 3rd Earl Russell OM FRS (18 May 1872 – 2 February 1970) was a British philosopher logician mathematician historian and social critic. Whitehead Principia Mathematica an attempt to ground mathematics on logic. ".