The key to the age may be this, or that, or the other, as the young orators describe; the key to all ages is - Imbecility; imbecility in the vast majority of men, at all times, and, even in heroes, in all but certain eminent moments; victims of gravity
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.
We agreed that great men and women should be forced to live as long as possible. The reverence they enjoyed was a life sentence, which they could neither revoke nor modify.
These are the times in which a genius would wish to live. It is not in the still calm of life, or the repose of a pacific station, that great characters are formed. The habits of a vigorous mind are formed in contending with difficulties. Great necessities call out great virtues. When a mind is raised, and animated by scenes that engage the heart, then those qualities which would otherwise lay dormant, wake into life and form the character of the hero and the statesman.
Housman is one of my heroes and always has been. He was a detestable and miserable man. Arrogant, unspeakably lonely, cruel, and so on, but and absolutely marvellous minor poet, I think, and a great scholar.
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.
There will be a wealth of facts revealed and revisited in [Underground] pertaining to Harriet Tubman. That is a huge part of my excitement, the fact that this generation will get such a beautifully-detailed introduction to a hero and icon that has largely lived in a few pages of our history books and in one-dimensional photographs.