In its sentimental mode, compassion is an exercise in moral indignation, in feeling good rather than doing good ... In its unsentimental mode, compassion seeks above all to do good.

Nothing is as seductive as the assurance of success.

The present illegitimacy ratio is not only unprecedented in the past two centuries it is unprecedented, so far as we know, in American history going back to colonial times, and in English history from Tudor times.

Without will, without individuals, there are no heroes. But neither are there villains. And the absence of villains is as prostrating, as soul-destroying, as the absence of heroes.

As liberty of thought is absolute, so is liberty of speech, which is 'inseparable' from the liberty of thought. Liberty of speech, moreover, is essential not only for its own sake but for the sake of truth, which requires absolute liberty for the utterance of unpopular and even demonstrably false opinions.

absolute liberty ... tends to corrupt absolutely.

The footnote would seem to be the smallest detail in a work of history. Yet it carries a large burden of responsibility, testifying to the validity of the work, the integrity (and the humility) of the historian, and to the dignity of the discipline.