Courage is the virtue that enables us to deal with danger, and today courage itself is in danger from certain opinions hostile to it, especially relativism. Courage presupposes something for which it is reasonable to sacrifice one’s comfort or well-being or even life. It is endangered when it is weakened by relativism in today's liberalism--and when it is strengthened beyond measure as in fascism. Neither reason nor experience suggests that relativism should be treated as benign.
Our Courage in Danger, by Harvey C. Mansfield by Hoover Institution