Courage from your parents, from your friends, from your partners and from your professors and teachers. As a partime teacher myself let me say in passing that it takes tremendous courage to be a full time teacher. All too often on a Monday morning I think of what Andy Warhol said when asked what he had done in life. Showing up to face a class that is not fully corpus mentis takes its own kind of courage. Courage has to be cultivated.
Courage is a habit.
We are not born brave. We learn bravery bit by bit. We learn courage the same way we learn everything else. By doing it. Aristotle sees private and public courage as two sides of one coin.