“All faiths do harm. We may define "faith" as a firm belief in something for which there is no evidence. Where there is evidence, no one speaks of "faith." We do not speak of faith that two and two are four or that the earth is round. We only speak of faith when we wish to substitute emotion for evidence. And the substitution of emotion for evidence is apt to lead to strife, since different groups substitute different emotions.” — Bertrand Russell

“Nearly everyone in ancient Egypt exhorted the gods to let the Pharaoh live 'forever. These collective prayers failed. Their failure constitutes data.” ― Carl Sagan

"In the course of history, there comes a time when humanity is called to shift to a new level of consciousness, to reach a higher moral ground." — Wangari Maathai

“There is no other species on Earth that does science. It is, so far, entirely a human invention, evolved by natural selection in the cerebral cortex for one simple reason: it works. It is not perfect. It can be misused. It is only a tool. But it is by far the best tool we have, self-correcting, ongoing, applicable to everything. It has two rules. First: there are no sacred truths; all assumptions must be critically examined; arguments from authority are worthless. Second: whatever is inconsistent with the facts must be discarded or revised. We must understand the Cosmos as it is and not confuse how it is with how we wish it to be. The obvious is sometimes false; the unexpected is sometimes true. Humans everywhere share the same goals when the context is large enough. And the study of the Cosmos provides the largest possible context. Present global culture is a kind of arrogant newcomer. It arrives on the planetary stage following four and a half billion years of other acts, and after looking about for a few thousand years declares itself in possession of eternal truths. But in a world that is changing as fast as ours, this is a prescription for disaster. No nation, no religion, no economic system, no body of knowledge, is likely to have all the answers for our survival. There must be many social systems that would work far better than any now in existence. In the scientific tradition, our task is to find them.” — Carl Sagan

“When it can be said by any country in the world, my poor are happy, neither ignorance nor distress is to be found among them, my jails are empty of prisoners, my streets of beggars, the aged are not in want, the taxes are not oppressive, the rational world is my friend because I am the friend of happiness. When these things can be said, then may that country boast its constitution and government. Independence is my happiness, the world is my country and my religion is to do good.” ― Thomas Paine, Rights of Man

“We've arranged a society based on science and technology, in which nobody understands anything about science and technology. And this combustible mixture of ignorance and power, sooner or later, is going to blow up in our faces.” — Carl Sagan

“The man who thinks himself virtuous in fearing an angry God will soon begin to see virtue in submission to earthly tyrants.” — Bertrand Russell