All parents aspire to raise the kind of children that they know will make the right choices--even when they themselves are not there to supervise.  One of the most effective ways to do that is to build the right family culture.  It becomes the informal but powerful set of guidelines about how your family behaves.
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This is what is so powerful about culture.  It's like an autopilot.  What is critical to understand is that for it to be an effective force, you have to properly program the autopilot--you have to build the culture that you want in your family.  If you do not consciously build it and reinforce it from the earliest stages of your family life, a culture will still form--but it will form in ways you may not like.  -Clayton M. Christensen, How Will You Measure Your Life?, pp. 172-173.