We have heard much about the poetry of mathematics, but very little of it has as yet been sung. The ancients had a juster notion of their poetic value than we. The most distinct and beautiful statements of any truth must take at last the mathematical form. We might so simplify the rules of moral philosophy, as well as of arithmetic, that one formula would express them both.

I begin to see an object when I cease to understand it.

In my Pantheon, Pan still reigns in his pristine glory, with his ruddy face, his flowing beard, and his shaggy body, his pipe and his crook, his nymph Echo, and his chosen daughter Iambe; for the great god Pan is not dead, as was rumored. No god ever dies. Perhaps of all the gods of New England and of ancient Greece, I am most constant at his shrine.

I suppose you think that persons who are as old as your father and myself are always thinking about very grave things, but I know that we are meditating the same old themes that we did when we were ten years old, only we go more gravely about it.

New York has her wilderness within her own borders; and though the sailors of Europe are familiar with the soundings of her Hudson, and Fulton long since invented the steamboat on its waters, an Indian is still necessary to guide her scientific men to its headwaters in the Adirondack country.

I did not know that we had ever quarreled.

Oh to reach the point of death and realize one has not lived at all.