I just finished watching all of Dennis Prager's Youtube videos on ideas. I most resonated with his economic philosophy. He had some amazing speakers, including Eric Metaxas and Robert George with whom my husband has worked at the Colson Center for Christian worldview.
Breakpoint This Week, one of the radio broadcasts of the Colson Center, once interviewed Dennis Prager concerning the place of the 10 commandments in our civil arena and education.
This video channel is really a spectacular crash course in ideas about our culture. I highly recommend them as food for thought.