Albert Einstein;"A knowledge of the existence of something we cannot penetrate, of the manifestations of the profoundest reason and the most radiant beauty, which are only accessible to our reason in their most elementary forms—it is this knowledge and this emotion that constitute the truly religious attitude; in this sense, and in this alone, I am a deeply religious man."
Henry David Thoreau; "At the same time that we are earnest to explore and learn all things, we require that all things be mysterious and unexplorable, that land and sea be infinitely wild, unsurveyed and unfathomed by us because unfathomable."
Lewis Mumford; "A day spent without the sight or sound of beauty, the contemplation of mystery, or the search of truth or perfection is a poverty-stricken day; and a succession of such days is fatal to human life."