"Overcome the angry by non-anger; overcome the wicked by goodness; overcome the miser by generosity; overcome the liar by truth." - Dhammapada 223
"Slay anger and you will be happy, slay anger and you will not sorrow. For the slaying of anger in all its forms with its poisoned root and sweet sting - that is the slaying the nobles praise; with anger slain one weeps no more." - Samyutta Nikaya I, 161
   
"The friend who is a helpmate, the friend in happiness and woe, the friend who gives good counsel, the friend who sympathises too -- these four as friends the wise behold and cherish them devotedly as does a mother her own child." - Digha Nikaya 31
"Let go of the past, let go of the future, let go of the present, and cross over to the farther shore of existence. With mind wholly liberated, you shall come no more to birth and death." - Dhammapada 348