“The progress of science is strewn, like an ancient desert trail, with the bleached skeletons of discarded theories which once seemed to possess eternal life.”

The Tragic Sense of Life (1913), X : Religion, the Mythology of the Beyond and the Apocatastasis
Context: May not the absolute and perfect eternal happiness be an eternal hope, which would die if it were realized? Is it possible to be happy without hope? And there is no place for hope once possession has been realized, for hope, desire, is killed by possession. May it not be, I say, that all souls grow without ceasing, some in a greater measure than others, but all having to pass some time through the same degree of growth, whatever that degree may be, and yet without ever arriving at the infinite, at God, to whom they continually approach? Is not eternal happiness an eternal hope, with its eternal nucleus of sorrow in order that happiness shall not be swallowed up in nothingness?

Physics and Philosophy (1942)

The New Day: Campaign Speeches of Herbert Hoover (1928)

Interview in The Voice of Ethiopia (5 April 1948) http://www.jah-rastafari.com/selassie-words/show-jah-word.asp?word_id=interview.
Context: One cannot deny that in former times man's life had been one of toil and hardship. It is correct to say, therefore, that modern civilization and the progress of science have greatly improved man's life and have brought comfort and ease in their trail. But civilization can serve man both for good as well as for evil purposes. Experience shows that it has invariably brought great dividends to those who use it for good purposes while it has always brought incalculable harm and damnation to those who use it for evil purposes. To make our wills obedient to good influences and to avoid evil, therefore, is to show the greatest wisdom. In order to follow this aim one must be guided by religion. Progress without religion is just like a life surrounded by unknown perils and can be compared to a body without a soul. All human inventions, from the most primitive tool to the modern atom, can help man greatly in his peaceful endeavours. But if they are put to evil purposes they have the capacity to wipe out the human race from the surface of the earth. It is only when the human mind is guided by religion and morality that man can acquire the necessary vision to put all his ingenuous inventions and contrivances to really useful and beneficial purposes.

"Heroic Reason", as translated by H. R. Hays, in Selected Writings of Juan Ramon Jimenez (1957) edited by Eugenio Florit, p. 231.
Context: A permanent state of transition is man's most noble condition. When we say an artist is in a state of transition, many believe that we are belittling. In my opinion when people speak of an art of transition this indicates a better art and the best that art can give. Transition is a complete present which unites the past and the future in a momentary progressive ecstasy, a progressive eternity, a true eternity of eternities, eternal moments. Progressive ecstasy is above all dynamic; movement is what sustains life and true death is nothing but lack of movement, be the corpse upright or supine. Without movement life is annihilated, within and without, for lack of dynamic cohesion. But the dynamism should be principally of the spirit, of the idea, it should be a moral dynamic ecstasy, dynamic in relation to progress, ecstatic in relation to permanence.

Source: A Stranger in Olondria (2013), Chapter 20, “The Sound of the World” (p. 282)

Quoted in: Kabir, Hajara Muhammad (2010). Northern women development. [Nigeria]. ISBN 978-978-906-469-4. OCLC 890820657.
1980s

Source: What Is This Thing Called Science? (Third Edition; 1999), Chapter 5, Introducing falsification, p. 60.

1950s, Loving Your Enemies (Christmas 1957)
Context: Jesus is eternally right. History is replete with the bleached bones of nations that refused to listen to him. May we in the twentieth century hear and follow his words-before it is too late. May we solemnly realize that we shall never be true sons of our heavenly Father until we love our enemies and pray for those who persecute us.