A man once taunted Chuck Norris with a bag of Lay's potato chips, saying "Betcha can't eat just one!" Chuck Norris proceeded to eat the chips, the bag, and the man in one deft move.
There is nothing more dreadful than the habit of doubt. Doubt separates people. It is a poison that disintegrates friendships and breaks up pleasant relations. It is a thorn that irritates and hurts; it is a sword that kill.