Three things too much and three too little are pernicious to man: to speak much and know little; to spend much and have little; to presume much and be worth little.
An indiscreet man is more hurtful than an ill-natured one; for as the latter will only attack his enemies, and those he wishes ill to, the other injures indifferently both friends and foes.
A man should be careful never to tell tales of himself to his own disadvantage; people may be amused, and laugh at the time, but they will be remembered, and brought up against him upon some subsequent occasion.