For the greater a man's works for the future, the less the present can comprehend them; the harder his fight, and the rarer success. If, however, once in centuries success does come to a man, perhaps in his latter days a faint beam of his coming glory may shine upon him. To be sure, these great men are only the Marathon runners of history; the laurel wreath of the present touches only the brow of the dying hero.
In displaying the psychology of your characters, minute particulars are essential. God save us from vague generalizations! Be sure not to discuss your hero's state of mind. Make it clear from his actions. Nor is it necessary to portray many main characters. Let two people be the center of gravity in your story: he and she.
The characteristic of genuine heroism is its persistency. All men have wandering impulses, fits and starts of generosity. But when you have resolved to be great, abide by yourself, and do not weakly try to reconcile yourself with the world. The heroic cannot be the common, nor the common the heroic.
The true Christian hero will appear in the cause of Christ, not only when it is prevailing, but when it seems to be declining; (he) will be on the right side, though it be not the rising side.