What makes poetry? A full heart, brimful of one noble passion.

We must always change, renew, rejuvenate ourselves; otherwise, we harden.

If we are out of synch with ourselves, everything is out of synch for us.

Error is to truth as sleep is to waking. I have observed that one turns, as if refreshed, from error back to truth.

A noble soul alone can noble souls attract; And knows alone, as ye, to hold them.

We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe.

Let mental culture go on advancing, let the natural sciences progress in even greater extent and depth, and the human mind widen itself as much as it desires: beyond the elevation and moral culture of Christianity, as it shines forth in the Gospels, it will not go.