"As long as we go back often to Nature herself, and practice the art of then forgetting for the time the fictions and hypotheses necessary in the partial treatments of our specialities,—as long as we thereby allow Nature and her facts to speak to us for themselves,—so long shall we, after each fresh contact, return to our labors with renewed strength and clarified vision."

“If you can bring me one student whose faith I have injured in Mormonism, I will bring you five that you, through your narrowness, have driven out of the church.”

“Not too much science but too little science is at the root of our troubles.”

“Only the childish and immature mind can lose by learning that much in the Old Testament is poetical and that some of the stories are not true historically. Poetry is a superior medium for conveying religious truth.”

“When we see men still so unhappily bound with prejudice and tradition that they are blind to the beauties and light of the grandest conception that science has yet won for man, we sorrow, and in sympathy again recall the plea that the unhappy Castelli made to the pope who was about to inflict punishment upon Galileo for his demonstration of the movements of the earth: "Your Holiness, nothing that can be done can now hinder the earth from moving.”

“ven within the realm of the strictly scientific; we need constant touch with the concrete realities of living nature to prevent our picturing her as exclusively such as we make her in our specialties and in our private dreams.”

“The savage mind finds mysterious and arbitrary spiritual powers everywhere, in rivers and springs, inherent in the wind and rain, and presiding over the crops; but, with advance in civilization and the development of ordered knowledge, an ever wider compass is established as the for the reign of natural laws. Those who base their faith in God on the ever-receding miraculous phenomena, on the tacit assumption that human limitations prove the validity of religious interpretations, are ever pointing out some weak spots in the scientific web of cause and effect and saying "Here Science is baffled, and you must admit the need of God." But Science keeps extending her domain; and so the history of the thought of these men is the history of a continuous retreat. Their position is fundamentally a bad one because it makes God a personified symbol of our residuum of ignorance, and justifies Reinach's definition of religion as a "sum of scruples impeding the free use of the human faculties." No, the Creator must be seen as God of all Nature and of every natural law.”