William F. Buckley Jr.
William F. Buckley Jr. was an influential American conservative author and commentator, known for founding the National Review magazine.
"We find that in the absence of demonstrable truth, the best we can do is to exercise the greatest diligence, humility, insight, intelligence, and industry in trying to arrive at the nearest values to truth. I hope, of course, to argue convincingly that having done this, we have an inescapable duty to seek to inculcate others with these values."