The next 'This is John Galt Speaking" is focused on happiness and how your happiness is intrinsically linked to your rational, ethical , and moral values.
As you listen, and perhaps re-listen to these videos, notice how non contradictory they are. How each concept builds on, and strengthens that which was presented previously.
For these concepts, taken and understood in their totality, provide one with a compass by which to lead a moral, non contradictory and happy life. A life focused on the individual rational self interests, yet never forgetting the value of those with whom you share life in this world.
Here is John Galt #7