Foolproof systems to not take into account the ingenuity of fools.
If there were any justice in this world, people would occasionally be permitted to fly over pigeons.
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 annoying thing about being modest is that you can't brag about it.
The bridges that you cross before you come to them are over rivers that aren't there.
The really tough thing about humility is you can't brag about it.