...every branch of learning, conjoined with the love of God,
is approved and worthy of praise; but bereft of His love, learning is barren —
indeed, it bringeth on madness. Every kind of knowledge, every science, is as a
tree: if the fruit of it be the love of God, then is it a blessed tree, but if
not, that tree is but dried-up wood, and shall only feed the fire.
(‘Abdu’l-Baha, ‘Selections from the
Writings of 'Abdu'l-Bahá’; The Compilation of Compilations, vol. I, Some
Aspects of Heath, Healing, Nutrition and Related Matters)
