You cannot do a kindness too soon.

No one can read the history of astronomy without perceiving that Copernicus, Newton, Laplace, are not new men, or a new kind of men, but that Thales, Anaximenes, Hipparchus, Empodocles, Aristorchus, Pythagorus, Oenipodes, had anticipated them.

The frost which kills the harvest of a year saves the harvest of a century, by destroying the weevil or the locust.

We live by our imagination, our admirations, and our sentiments.

In a virtuous action, I properly am; in a virtuous act, I add to the world; I plant into deserts conquered from Chaos and Nothing, and see the darkness receding on the limits of the horizon.

Nor count compartments of the floors, But mount to paradise By the stairway of surprise.

Consistency is the bugbear that frightens little minds.