Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so. from 'Last Chance to See' by Douglas Adams and Mark Carwardine
"You cannot help the poor by destroying the rich. You cannot strengthen the weak by weakening the strong. You cannot bring about prosperity by discouraging thrift. You cannot lift the wage earner up by pulling the wage payer down. You cannot further the brotherhood of man by inciting class hatred. You cannot build character and courage by taking away people's initiative and independence. You cannot help people permanently by doing for them, what they could and should do for themselves." Abraham Lincoln
Old biker expression (I'm an old biker). "if it has two boobs or two wheels, one day it will give you problems" (I cleaned it up a little with the word boobs). And of course my favorite.... "nomatter how good looking she is, somewhere, there's some guy that's sick of her stuff" (again, I cleaned it up with stuff).
People (especially women) always wants to know the truth, unless the truth is about themselves. If you want to get in trouble telling the truth, go ahead tell your wife how she really looks.
On the lighter side :: How is it that one careless match can start a forest fire - But...it takes a whole match box to start a campfire ???