«Love is the crowning grace of humanity, the holiest right of the soul, the golden link which binds us to duty and truth, the redeeming principle that chiefly reconciles the heart of life, and is prophetic of eternal good.»

«How prophetic L'Enfant was when he laid out Washington as a city that goes around in circles!»

«When a scientist is ahead of his times, it is often through misunderstanding of current, rather than intuition of future truth. In science there is never any error so gross that it won't one day, from some perspective, appear prophetic.»

«The more I observed Washington, the more frequently I visited it, and the more people I interviewed there, the more I understood how prophetic L'Enfant was when he laid it out as a city that goes around in circles.»

«For I say unto you in all sadness of conviction that to think great thoughts you must be heroes as well as idealists. Only when you have worked alone / when you have felt around you are a black gulf of solitude more isolating than that which surrounds the dying man, and in hope and despair have trusted to your own unshaken will / then only can you gain the secret isolated joy of the thinker, who knows that a hundred years after he is dead and forgotten men who have never heard of him will be moving to the measure of his thought / the subtle rapture of postponed power, which the world knows not because it has no external trappings, but which to his prophetic vision is more real than that which commands an army. And if this joy should not be yours, still it is only thus you can know that you have done what lay in you to do / can say that you have lived, and be ready for the end.»

«Till old experience do attain / To something like prophetic strain.»

«Be thou the rainbow in the storms of life. The evening beam that smiles the clouds away, and tints tomorrow with prophetic ray.»

«The past is prophetic in that it asserts loudly that wars are poor chisels for carving out peaceful tomorrows.»