courage to do what you think is right
Signers of the Declaration of Independence, Rosa Parks, Carl Lutz, Martin Luther King Jr., and many more.
disregarding physical danger for the sake of others' life, liberty, property, or simply happiness; is visible
Moral courage is the strength to do what's right morally, for example Atticus Finch in To Kill a Mockingbird. He defends Tom Robinson because he knows it is morally wrong to turn him down simply...
Ability to put fear aside and do what needs to be doneCourage is going from failure to failure without losing enthusiasm(Winston Churchill)