Sophocles

Men should pledge themselves to nothing for reflection makes a liar of their resolution.

Money is the worst currency that ever grew among mankind. This sacks cities, this drives men from their homes, this teaches and corrupts the worthiest minds to turn base deeds.

Ignorant men don’t know what good they hold in their hands until they’ve flung it away.

Men of ill judgment ignore the good that lies within their hands, till they have lost it.