Authors:

You must go to Mahometanism, to Buddhism, to the East, to the Sufis Fakirs, to Pantheism, for the right growth of mysticism.

Florence Nightingale, Michael D. Calabria, Janet A. Macrae (1994). “Suggestions for Thought by Florence Nightingale: Selections and Commentaries”, p.13, University of Pennsylvania Press
You must go to Mahometanism, to Buddhism, to the East, to the Sufis Fakirs, to Pantheism, for the right growth of mysticism.