the labors of educators are apparently canceled in each generation by the fertility of the uninformed. But much of what we call intelligence is the result of individual education, opportunity, and experience; and there is no evidence that such intellectual acquirements are transmitted in the genes. Even the children of Ph.D.s must be educated and go through their adolescent measles of errors, dogmas, and isms; nor can we say how much potential ability and genius lurk in the chromosomes of the harassed and handicapped poor.
