“We ought to regard the present state of the universe as the effect of its antecedent state and as the cause of the state that is to follow. An intelligence knowing all the forces acting in nature at a given instant, as well as the momentary positions of all things in the universe, would be able to comprehend in one single formula the motions of the largest bodies as well as the lightest atoms in the world, provided that its intellect were sufficiently powerful to subject all data to analysis; to it nothing would be uncertain, the future as well as the past would be present to its eyes. The perfection that the human mind has been able to give to astronomy affords but a feeble outline of such an intelligence.”

“By looking far out into space we are also looking far back into time, back toward the horizon of the universe, back toward the epoch of the Big Bang.”

“If time be judiciously employed, there is time for everything.”

“In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie.[Dedication to Sagan’s wife, Ann Druyan, in Cosmos]”

“If you imagine the 4,500-bilion-odd years of Earth’s history compressed into a normal earthly day, then life begins very early, about 4 A.M., with the rise of the first simple, single-celled organisms, but then advances no further for the next sixteen hours. Not until almost 8:30 in the evening, with the day five-sixths over, has Earth anything to show the universe but a restless skin of microbes. Then, finally, the first sea plants appear, followed twenty minutes later by the first jellyfish and the enigmatic Ediacaran fauna first seen by Reginald Sprigg in Australia. At 9:04 P.M. trilobites swim onto the scene, followed more or less immediately by the shapely creatures of the Burgess Shale. Just before 10 P.M. plants begin to pop up on the land. Soon after, with less than two hours left in the day, the first land creatures follow. Thanks to ten minutes or so of balmy weather, by 10:24 the Earth is covered in the great carboniferous forests whose residues give us all our coal, and the first winged insects are evident. Dinosaurs plod onto the scene just before 11 P.M. and hold sway for about three-quarters of an hour. At twenty-one minutes to midnight they vanish and the age of mammals begins. Humans emerge one minute and seventeen seconds before midnight. The whole of our recorded history, on this scale, would be no more than a few seconds, a single human lifetime barely an instant. Throughout this greatly speeded-up day continents slide about and bang together at a clip that seems positively reckless. Mountains rise and melt away, ocean basins come and go, ice sheets advance and withdraw. And throughout the whole, about three times every minute, somewhere on the planet there is a flash-bulb pop of light marking the impact of a Manson-sized meteor or one even larger. It’s a wonder that anything at all can survive in such a pummeled and unsettled environment. In fact, not many things do for long.”

“Another glorious Sierra day in which one seems to be dissolved and absorbed and sent pulsing onward we know not where. Life seems neither long nor short, and we take no more heed to save time or make haste than do the trees and stars. This is true freedom, a good practical sort of immortality.”

“…[S]o many people look only to their bank balance for peace or to fellow human beings for models to follow. Clinicians, academicians, and politicians are often put to a test of faith. In pursuit of their goals, will their religion show or will it be hidden? Are they tied back to God or to man? I had such a test decades ago when one of my medical faculty colleagues chastised me for failing to separate my professional knowledge from my religious convictions. He demanded that I not combine the two. How could I do that? Truth is truth! It is not divisible, and any part of it cannot be set aside. Whether truth emerges from a scientific laboratory or through revelation, all truth emanates from God.”

“The moral vacuum we now feel ourselves to be in has always been there, even if we haven’t recognized it Religious people are already entirely accustomed to picking and choosing which texts from holy book they obey and which they reject. There are passages of the Judeo-Christian Bible which no modern Christian or Jew would wish to follow. The story of Isaac’s narrowly averted sacrifice by his father Abraham strikes us moderns as a shocking piece of child abuse, whether we read it literally or symbolically.”

“Science may have alleviated the miseries of disease and drudgery and provided an array of gadgetry for our entertainment and convenience, but it has left us in a world without wonder. Our sunsets have been reduced to wavelengths and frequencies. The complexities of the universe have been shredded into mathematical equations. Even our self-worth as human beings has been destroyed. Science proclaims that Planet Earth and its inhabitants are a meaningless speck in the grand scheme. A cosmic accident.”

“Наука і релігія – не конкуренти, це дві різні мови, які говорять про те саме. У світі є місце для них обох.”

“It strikes me that religion seeks to take natural events and ascribe supernatural causes to them. I, however, seek to take supernatural events and find the natural meanings behind them. Perhaps that is the final dividing line between science and religion. Opposite sides of a card.”

“We will explore the sacred relationships that exist between science, religion and everything in-between. It is the in-between territory that is oft overlooked, seldom realized, an area that terrifies religionists and scientists alike.”

“When facts are treated as if they were opinions, when there is no universal standard by which to determine truth in law, in science, in scholarship, or in the reporting of events of the day, the world becomes a place where lies become true, where people can believe what they want to believe, where there is no possibility of reaching any conclusion not predetermined by those who interpret the official, divinely inspired text.”

“La pensée ne doit jamais se soumettre, ni à un dogme, ni à un parti, ni à une passion, ni à un intérêt, ni à une idée préconçue, ni à quoi que ce soit, si ce n’est aux faits eux-mêmes, parce que, pour elle, se soumettre, ce serait cesser d’être.”

“[Sire,] je n’ai pas eu besoin de cette hypothèse.”En répondant Napoléon qui lui demanda pourquoi sa théorie de l’univers ne indique pas Dieux.”