Quotes:Quadrivium

H. P. Blavatsky

Quadrivium (Lat.). A term used by the Scholastics during the Middle Ages to designate the last four paths of learning—of which there were originally seven. Thus grammar, rhetoric and logic were called the trivium, and arithmetic, geometry, music and astronomy (the Pythagorean obligatory sciences) went under the name of quadrivium.

Source: H. P. Blavatsky, The Theosophical Glossary, art. Quadrivium