It is very grand to die in harness, but it is very pleasant to have the tight straps unbuckled and the heavy collar lifted from the neck and shoulders.

Science is the topography of ignorance. From a few elevated points we triangulate vast spaces, inclosing infinite unknown details. We cast the lead, and draw up a little sand from abysses we may never reach with our dredges.

To be civilized is to be potentially master of all possible ideas, and that means that one has got beyond being shocked, although one preserves one's own moral aesthetic preferences.

You hear that boy laughing?you think he's all fun; But the angels laugh, too, at the good he has done; The children laugh loud as they troop to his call, And the poor man that knows him laughs loudest of all.

The history of intellectual growth and discovery clearly demonstrates the need for unfettered freedom, the right to think the unthinkable, discuss the unmentionable, and challenge the unchallengeable. To curtail free expression strikes twice at intellectual freedom, for whoever deprives another of the right to state unpopular views necessarily also deprives others of the right to listen to those views.

No generalization is wholly true—not even this one.

The ideas of the classics, so far as living, are our commonplaces. It is the modern books that give us the latest and most profound conceptions. It seems to me rather a lazy makeshift to mumble over the familiar.