As an undergraduate, "Child Psychology" used to interest me (for whatsoever reasons. But now I know why as a father). Two of the few things I picked up from that enviable field of study are:
Kids take after their mothers' intelligent quota. No matter how brilliant you're as a man, your kids will pick that from their mother. Not yours. This is sad for me but it is scientifically proven. You can Google it up if in doubt. So, Mr. Bachelor look beyond the physiognomy of that spinster you want to marry and her current financial standing into her brain.
The second one is - Kids learn faster with their fathers than with their mothers. The problem here is that most fathers hardly spend that lecture time with their kids. Before you argue this with me, when was the last time you did the kids' assignments with them or read a story book with them as a father?
As a father, this is so true. I have noticed this in my kids. How many of you fathers have also noticed this?