An individual is an encloser. Time and space, liberty and necessity, truth and thought, are left at large no longer.

I cannot go to the houses of my nearest relatives, because I do not wish to be alone. Society exists by chemical affinity, and not otherwise.

The Italians are fond of red clothes, peacock plumes, and embroidery; and I remember one rainy morning in the city of Palermo, the street was ablaze with scarlet umbrellas.

To make knowledge valuable, you must have the cheerfulness of wisdom.

Go into one of our cool churches, and begin to count the words that might be spared, and in most places the entire sermon will go.

The finished man of the world must eat of every apple at once. He must hold his hatreds also at arm's length, and not remember spite. He has neither friends nor enemies, but values men only as channels of power.

Every known fact in natural science was divined by the presentiment of somebody, before it was actually verified.