Never do I argue with a man with a desire to hear him say what is wrong, or to expose him and win victory over him. Whenever I face an opponent in debate I silently pray - O Lord, help him so that truth may flow from his heart and on his tongue, and so that if truth is on my side, he may follow me; and if truth be on his side, I may follow him.
To seek the greatest good is to live well, and to live well is nothing other than to love God with the whole heart, the whole soul, and the whole mind: It is therefore obvious that this love must be kept whole and uncorrupt, that is temperance; it should not be overcome with difficulties, that is fortitude, it must not be subservient to anything else, that is justice; it must discriminate among things so as not to be deceived by falsity or fraud, that is prudence.