Never try to prove to the other person that you are right. It is human nature to object to anyone who insists he is right. Rather, always present your arguments in such a manner as to do your best to prove that you are wrong. If you follow this approach, especially when you are sure you are right, the person you are trying to convince will bring up strong evidence in behalf of your cause and prove...
Blessed is he who carries within himself a god and an ideal and who obeys it - an ideal of art, of science, or gospel virtues. Therein lie the springs of great thoughts and great actions.