The Republic by Plato Part 4 Page 34

The city will be courageous in virtue of a portion of herself which preserves under all circumstances that opinion about the nature of things to be feared and not to be feared in which our legislator educated them; and this is what you term courage.

I should like to hear what you are saying once more, for I do not think that I perfectly understand you.

I mean that courage is a kind of salvation.

Salvation of what?

Of the opinion respecting things to be feared, what they are and of what nature, which the law implants through education; and I mean by the words ‘under all circumstances’ to intimate that in pleasure or in pain, or under the influence of desire or fear, a man preserves, and does not lose this opinion.