In a blink of an eye they're out of diapers and driving your car. Savor every minute. I always balance my work with my time at home, because I don't want to wake up one morning and realize I've missed their childhood. I make my family my top priority. Sometimes I think it's impossible to balance both.
Guilt goes hand in hand with being a dad.
There are no rules. Because there's no such thing. You make the rules as you go along. I think about how our friends raise their kids. Then I go with what I feel is right.