“You will understand the true spirit neither of science nor of religion unless seeking is placed in the forefront.”

Source: Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry (1871), Ch. I : Apprentice, The Twelve-Inch Rule and Common Gavel, p. 1
Context: Though Masonry neither usurps the place of, nor apes religion, prayer is an essential part of our ceremonies. It is the aspiration of the soul toward the Absolute and Infinite Intelligence, which is the One Supreme Deity, most feebly and misunderstandingly characterized as an "architect." Certain faculties of man are directed toward the Unknown — thought, meditation, prayer. The unknown is an ocean, of which conscience is the compass. Thought, meditation, prayer, are the great mysterious pointings of the needle. It is a spiritual magnetism that thus connects the human soul with the Deity. These majestic irradiations of the soul pierce through the shadow toward the light.
It is but a shallow scoff to say that prayer is absurd, because it is not possible for us, by means of it, to persuade God to change His plans. He produces foreknown and foreintended effects, by the instrumentality of the forces of nature, all of which are His forces. Our own are part of these. Our free agency and our will are forces. We do not absurdly cease to make efforts to attain wealth or happiness, prolong life, and continue health, because we cannot by any effort change what is predestined. If the effort also is predestined, it is not the less our effort, made of our free will.

As quoted in The Jewish Encyclopedia (12 vols. 1901-1906) http://www.jewishencyclopedia.com/view.jsp?artid=905&letter=M
Guide for the Perplexed (c. 1190), Introduction
Context: I have composed this work neither for the common people, nor for beginners, nor for those who occupy themselves only with the Law as it is handed down without concerning themselves with its principles. The design of this work is rather to promote the true understanding of the real spirit of the Law, to guide those religious persons who, adhering to the Torah, have studied philosophy and are embarrassed by the contradictions between the teachings of philosophy and the literal sense of the Torah.

Source: Nation

Science and Immortality (1904)
Context: The search of science for the spirits has been neither long nor earnest; nor is it a matter of surprise that it has not been undertaken earlier by men whose training had fitted them for the work.
It is no clear, vasty deep, but a muddy, Acheronian pool in which our modern spirits dwell, with Circe as the presiding deity and the Witch of Endor as her high priestess. Commingling with the solemn incantations of the devotees who throng the banks, one can hear the mocking laughter of Puck and of Ariel, as they play among the sedges and sing the monotonous refrain, "What fools these mortals be!" Sadly besmirched, and more fitted for a sojourn in Ancyra than in Athens, has been the condition of those who have returned from the quest, and we cannot wonder that scientific men have hesitated to stir the pool and risk a touch from Circe's wand. All the more honour to those who have with honest effort striven to pierce the veil and explore the mysteries which lie behind it.

No other substance but this could produce the human molecule. I know very well that this idea of spirit-matter is regarded as a hybrid monster, a verbal exorcism of a duality which remains unresolved in its terms. But I remain convinced that the objections made to it arise from the mere fact that few people can make up their minds to abandon an old point of view and take the risk of a new idea. … Biologists or philosophers cannot conceive a biosphere or noosphere because they are unwilling to abandon a certain narrow conception of individuality. Nevertheless, the step must be taken. For in fact, pure spirituality is as unconceivable as pure materiality. Just as, in a sense, there is no geometrical point, but as many structurally different points as there are methods of deriving them from different figures, so every spirit derives its reality and nature from a particular type of universal synthesis.
A Sketch of a Personalistic Universe (1936)

Poem
Departures (1973)

Letters

Answer from Pasteur to his disciple Elie Metchnikoff when was questioned whether his approach to spontaneous generation was bound to a religious ideal. According to Patrice Debré's Luis Pasteur, 2000 https://books.google.co.uk/books?id=RzOcl-FLw30C&lpg=PP1&pg=PA176#v=onepage&q&f=false,, p. 176.
Disputed

Biharul Anwar, Vol. 45, P. 51
General Quotes