The mean pattern of educational and economic achievement within multi-racial countries such as Canada and the United States has increasingly been found to prove valid internationally.

Those objecting to the concept of race argue that the taxonomic definitions are arbitrary and subjective.

I was born in Bournemouth, England, in 1943.

Nonetheless, much has been learned by studying the statistical differences between the various human races.

Race differences show up early in life.

Of course, individuals vary greatly within each racial group and should be treated as such.

I received a D.Sc. from the University of London in 1992.