The Essential Frithjof Schuon (Library of Perennial Philosophy)
"His writings are universal, not only because the formless Essence is universal, but also because even on the level of forms he does not confine himself solely to a particular world, period or region. Schuon's works are also comprehensive and all-embracing in the sense that they include practically the whole mountain of knowledge understood in the traditional sense… From the point of view of sheer scholarly knowledge… it is hardly possible to find a contemporary corpus of writings with the same all-embracing and comprehensive nature combined with incredible depth."—Seyyed Hossein Nasr