This is typical WSJ material, but it's often interesting to see what people are thinking.

Half of all children are below average, and teachers can do only so much for them.

My point is just this: It is true that many social and economic problems are disproportionately found among people with little education, but the culprit for their educational deficit is often low intelligence. Refusing to come to grips with that reality has produced policies that have been ineffectual at best and damaging at worst.

Too many Americans are going to college.

Most students find college life to be lots of fun (apart from the boring classroom stuff), and that alone will keep the four-year institution overstocked for a long time. But, rightly understood, college is appropriate for a small minority of young adults--perhaps even a minority of the people who have IQs high enough that they could do college-level work if they wished. People who go to college are not better or worse people than anyone else; they are merely different in certain interests and abilities. That is the way college should be seen. There is reason to hope that eventually it will be.

Aztecs vs. Greeks: Those with superior intelligence need to learn to be wise.

The aim here is not to complete an argument but to begin a discussion; not to present policy prescriptions, but to plead for greater realism in our outlook on education. Accept that some children will be left behind other children because of intellectual limitations, and think about what kind of education will give them the greatest chance for a fulfilling life nonetheless. Stop telling children that they need to go to college to be successful, and take advantage of the other, often better ways in which people can develop their talents. Acknowledge the existence and importance of high intellectual ability, and think about how best to nurture the children who possess it.