When one's thoughts are neither frivolous nor flippant, when one's thoughts are neither stiff-necked nor stupid, but rather, are harmonious -- they habitually render physical calm and deep insight.

Hildegard of Bingen (1098 CE-1179CE), Hildegard of Bingen (German: Hildegard von Bingen), also known as Saint Hildegard and the Sibyl of the Rhine, was a German Benedictine abbess and polymath active as a writer, composer, philosopher, mystic, visionary, and as a medical writer and practitioner during the High Middle Ages. She has been considered by a number of scholars to be the founder of scientific natural history in Germany.