They should hold themselves absolutely upon the immovable foundation of truth and nature, whereby alone they can save themselves from misapprehensions and from the danger of being entirely carried away from reality into mere dreams and fictions. – Ethan A. Hitchcock

I honor health as the first muse, and sleep as the condition of health. Sleep benefits mainly by the sound health it produces; incidentally also by dreams, into whose farrago a divine lesson is sometimes slipped. – Ralph Waldo Emerson, Letters and Social Aims, “Inspiration”