“Pain and foolishness lead to great bliss and complete knowledge, for Eternal Wisdom created nothing under the sun in vain.”

As quoted in Hindu Psychology : Its Meaning for the West (1946) by Swami Akhilananda, p. 204
Variant translation: Meditate upon the Knowledge and Bliss Eternal, and you also will have bliss. Bliss indeed is eternal, only it is covered and obscured by ignorance. The less your attachment is to the senses, the more will be your love to God.
Saying 806, in Teachings of Sri Ramakrishna (1948) edited by Swami Vireswarananda
Context: Meditate upon the Knowledge and Bliss Eternal, and you will also have bliss. The Bliss indeed is eternal, only it is covered and obscured by ignorance. The less your attachment is towards the senses, the more will be your love towards God.

Siddhartha (1922)
Context: Wisdom is not communicable. The wisdom which a wise man tries to communicate always sounds foolish... Knowledge can be communicated, but not wisdom. One can find it, live it, do wonders through it, but one cannot communicate and teach it.

Word of Mouth (2002)

The Unnamable (1954)
Context: What a joy to know where one is, and where one will stay, without being there. Nothing to do but stretch out comfortably on the rack, in the blissful knowledge you are nobody for all eternity. A pity I should have to give tongue at the same time, it prevents it from bleeding in peace, licking the lips.

Desire and fear
Source: "I am That." P.82.

April 1, 2001, First Arab Conference on Arabizing the Internet, Amman, Jordan.

Source: Sayings of Sri Ramakrishna (1960), p. 164
Context: Two friends went into an orchard. One of them possessing much worldly wisdom, immediately began to count the mango trees there and the number of mangoes each tree bore, and to estimate what might be the approximate value of the whole orchard. His companion went to the owner, made friends with him, and then, quietly going into a tree, began at his host's desire to pluck the fruits and eat them. Whom do you consider to be the wiser of the two? Eat mangoes. It will satisfy your hunger. What is the good of counting the trees and leaves and making calculations? The vain man of intellect busies himself with finding out the "why" and "wherefore" of creation, while the humble man of wisdom makes friends with the Creator and enjoys His gift of supreme bliss.

As quoted in The Anchor Book of Latin Quotations: with English translations‎ (1990) by Norbert Guterman, p. 375
Disputed

Cosmic Command