Every man contemplates an angel in his future self.

The book written against fame and learning has the author's name on the title-page.

By necessity, by proclivity, and by delight, we all quote.

The eye is the first circle; the horizon which it forms is the second; and throughout nature this primary figure is repeated without end.

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.

Science surpasses the old miracles of mythology.

We do what we can, and then make a theory to prove our performance the best.