Foolproof systems to not take into account the ingenuity of fools.
The annoying thing about being modest is that you can't brag about it.
The toughest thing about raising kids is convincing them that you have seniority.
One good thing about being young is that you're not experienced enough to know what can't be done.
The key to getting ahead is setting aside 8 hours a day for work and 8 hours a day for sleep - and making sure they're not the same hours.
The trouble with making intelligent suggestions is that you're apt to be appointed to carry them out.