“A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.”
Source: Contact (1985), Chapter 14 (p. 244)
Help us to complete the source, original and additional information
Carl Sagan 365
American astrophysicist, cosmologist, author and science ed… 1934–1996Related quotes

“The concept of law can be defined only as the reality tending toward the idea of law.”
Rechtsphilosophie (1932)

Source: Spiritual Authority and Temporal Power (1929), p. 62

The Syntax of Sorcery (2012)
Context: I'll say this much: virtually every advancement made by our species since civilization first peeked out of its nest of stone has been initiated by lone individuals, mavericks who more often than not were ignored, mocked, or viciously persecuted by society and its institutions. Society in general maintains such a vested interest in its cozy habits and solidified belief systems that it had rather die – or kill – than entertain change. Consider how threatened religious fundamentalists of all faiths remain to this day by science in general and Darwin in particular.
Cultural institutions by and large share one primary objective: herd control. Even when ostensibly benign, their propensity for manipulation, compartmentalization, standardization and suppression of potentially disruptive behavior or ideas, has served to freeze the evolution of consciousness practically in its tracks. In technological development, in production of material goods and creature comforts, we've challenged the very gods, but psychologically, emotionally, we're scarcely more than chimpanzees with bulldozers, baboons with big bombs.
Source: “Evolutionary Theory and Theological Ethics” (2012), p. 251

Introduction à l'Étude de la Médecine Expérimentale (1865)

What is Art? (1897)
Context: The good is the everlasting, the pinnacle of our life. … life is striving towards the good, toward God. The good is the most basic idea … an idea not definable by reason … yet is the postulate from which all else follows. But the beautiful … is just that which is pleasing. The idea of beauty is not an alignment to the good, but is its opposite, because for most part, the good aids in our victory over our predilections, while beauty is the motive of our predilections. The more we succumb to beauty, the further we are displaced from the good.... the usual response is that there exists a moral and spiritual beauty … we mean simply the good. Spiritual beauty or the good, generally not only does not coincide with the typical meaning of beauty, it is its opposite.

Letter to Edmond Galabert, and G. (October 1866), as quoted in Letters of Composers: An Anthology, 1603-1945 (1946) edited by Gertrude Norman and Miriam Lubell Shrifte, p. 241

"Our Universal Civilization" in The New York Times (5 November 1990) https://www.nytimes.com/1990/11/05/opinion/our-universal-civilization.html
Context: The universal civilization has been a long time in the making. It wasn't always universal; it wasn't always as attractive as it is today. The expansion of Europe gave it for at least three centuries a racial taint, which still causes pain. … This idea of the pursuit of happiness is at the heart of the attractiveness of the civilization to so many outside it or on its periphery. I find it marvelous to contemplate to what an extent, after two centuries, and after the terrible history of the earlier part of this century, the idea has come to a kind of fruition. It is an elastic idea; it fits all men. It implies a certain kind of society, a certain kind of awakened spirit. I don't imagine my father's Hindu parents would have been able to understand the idea. So much is contained in it: the idea of the individual, responsibility, choice, the life of the intellect, the idea of vocation and perfectibility and achievement. It is an immense human idea. It cannot be reduced to a fixed system. It cannot generate fanaticism. But it is known to exist, and because of that, other more rigid systems in the end blow away.

1990s, The Monarchy: A Critique of Britain's Favourite Fetish