Nothing completes you like a child. But I didn't know that before I had one.
Awards, accolades, medals, qualifications, degrees, winning, applause, the satisfaction of a job well done....all these things are great, and I am still proud of having achieved / earned them, but the shine wears off each of them fairly quickly leaving you with the need, or at least urge, to do it again.
Friends, lovers, and sadly even spouses aren't necessarily forever. Your kids are always your kids. The contentment of being with them and keeping them safe....the joy and pride of their small milestones....I honestly think reading bedtime stories may be some of the best, happiest, most content moments of my life.
Anyway, kids rule.
Now I want grandkids.