Greed rises from wrong ideas of satisfaction;anger rises from wrong idea concerning the state of one\'s affairs and surroundings;foolishness rises from the inability to judge what correct conduct is. These three-greed, anger and foolishenss-are, therefore, the sources of all human woe. To get rid of these sources of woe, one must observe the precepts,must practise concentration of mind and must have wisdom. Observance of the precepts will remove the impurities of greed; right concentration of mind will remove the impurities of anger; and wisdom will remove the impuriteis of foolishness.