Is the right hon. Gentleman aware of the phenomenon of scientific and medical racism which purports to show that there are several species—for example, homo africanus and homo europi? One is of fair complexion, sanguine temperament, brawny form and gentle manners and is acute in judgment. The other is of black complexion, phlegmatic temperament and relaxed fibre and is crafty, indolent and careless. That appears in books in establishments throughout the country, from schools to universities. What is the right hon. Gentleman's opinion of that view?