Image from Calvin & Hobbes by Bill Watterson Unlimited hours. No breaks. The most important job is also the world's toughest job: parenting. It's easy to point out potential pitfalls and mistakes, but in a day and age where the world's toughest job only seems to be getting tougher, every victory as a parent should be celebrated. Yes, avoiding parenting mistakes is important--but focusing on parenting successes can also teach valuable lessons.