Heather Mac Donald on poverty and behaviour:  

We are supposed to assume that a 21-year-old mother of two should not have been expected to assess whether she and her male sexual partners were ready to support a family; it is for her to have babies and for taxpayers to provide for them. And if Temporary Assistance to Needy Families cuts off that support for failure to comply with its rules, [we are supposed to assume that] the problem lies with the law, not with the decision-making that led to the need for welfare in the first place. […] So assiduously non-judgmental is the liberal discourse around poverty that [New York Times reporter, Jason] DeParle portrays the crime committed by single mothers as the consequence of welfare reform — rather than of those mothers’ previous abysmal decision-making regarding procreation and their present lack of morals. […] Underclass poverty doesn’t just happen to people, as the left implies. It is almost always the consequence of poor decision-making — above all, having children out of wedlock.

Regarding the fallout of illegitimacy and absent fathers, see also this and this.

Related to the above, a vintage post by Peter Risdon:

One thing, and one thing only, keeps people trapped in the kind of poverty of mind where they don’t feed their children properly even when they could, and shit in their own stairwells. It’s a lack of ownership; a lack of self-reliance. It’s a lack of the very concept of self-reliance. It’s an idea that the mere thought that they should be self-reliant is immoral, evil, callous and cruel.

And a random thought from Thomas Sowell:

When politicians say, “spread the wealth,” translate that as “concentrate the power,” because that is the only way they can spread the wealth.

As usual, feel free to add your own.