If workmen are hired to do a job, all too often it is a botched job. Teachers and lecturers complain of soaring levels of illiteracy, which cannot all be explained away by misguided and ineffective educational techniques. Each new year, admittance into secondary schools contains many more pupils than the year before who can neither read nor write and who lack basic skills in numeracy. University lecturers frequently find that they must attempt to teach new students the grounding in subjects which were insufficiently taught at school. The speed of the decay is gathering a rapid momentum.
Intelligence is biological.
Knowledge is the acquisition of facts, but intelligence is the biological potential to understand and to learn. There are huge variations in levels of intelligence between individuals within a race and between different races, communities or families. Intelligence is inherited. Because there are many genes involved in determining intelligence, it is a very delicate balance. If you wanted to improve the intelligence of the next generation in Britain, you would achieve this if you successfully encouraged intelligent couples to have several children and discouraged unintelligent people from so doing.