"Fatherless boys (as a general rule) become ineligible as husbands -- though no less likely to become fathers.... The absence of fathers means, as well that girls lack ... a pattern against which to measure the boys who pursue them."
And, as in an earlier post (Discipline before Learning), once again we see the importance of discipline. People cannot accomplish goals without discipline and discipline needs to be learned by constant repetition, in much the same way as learning the times table. In fact learning the times table is as important as a source of discipline as it is a mathematical and educational building block.