This section of quotes is all (anti)-religious based. If you will be offended, skip this one.
"To argue with a man who has renounced his reason is like giving medicine to the dead." - Thomas Paine
“I contend that we are both atheists. I just believe in one fewer god than you do. When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.” - Stephen Roberts
"All national institutions of churches, whether Jewish, Christian or Turkish, appear to me no other than human inventions, set up to terrify and enslave mankind, and monopolize power and profit." - Thomas Paine
"Where all men think alike, no one thinks very much." - Walter Lippmann
"Reality is that which, when you stop believing in it, doesn't go away." - Philip K. Dick
"I was forced, through seeing the error of their foundation, to abandon all belief in every religion which had been taught to man. But my religious feelings were immediately replaced by the spirit of universal charity — not for a sect, or a party, or for a country or a colour — but for the human race, and with a real and ardent desire to do good." - Robert Owen
"I was dead for millions of years before I was born and it never inconvenienced me a bit." - Mark Twain
"There are things about organized religion which I resent. Christ is revered as the Prince of Peace, but more blood has been shed in His name than any other figure in history. You show me one step forward in the name of religion and I'll show you a hundred retrogressions. Remember, they were men of God who destroyed the educational treasures at Alexandria, who perpetrated the Inquisition in Spain, who burned the witches at Salem. Over 25,000 organized religions flourish on this planet, but the followers of each think all the others are miserably misguided and probably evil as well." - Frank Sinatra
"It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring." - Carl Sagan.
"If a man, holding a belief which he was taught in childhood or persuaded of afterwards, keeps down and pushes away any doubts which arise about it in his mind, purposely avoids the reading of books and the company of men that call into question or discuss it, and regards as impious those questions which cannot easily be asked without disturbing it — the life of that man is one long sin against mankind."
-W. K. Clifford
"There is a boundary to men's passions when they act from feeling; none when they are under the influence of imagination."
- Edmund Burke
"Man will never be free until the last king is strangled with the entrails of the last priest."
- Dennis Diderot
"Any sufficiently advanced technology is indistinguishable from magic." - Arthur C. Clarke
"Eskimo: "If I did not know about God and sin, would I go to hell?" Priest: "No, not if you did not know." Eskimo: "Then why did you tell me?"" - Annie Dillard
"If a man would follow, today, the teachings of the Old Testament, he would be a criminal. If he would follow strictly the teachings of the New, he would be insane." - Robert Green Ingersoll
"Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear." - Thomas Jefferson
"
When lip service to some mysterious deity permits bestiality on Wednesday and absolution on Sunday, cash me out." - Frank Sinatra
"If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed." - Albert Einstein
"Religion is an insult to human dignity. With or without it you would have good people doing good things and evil people doing evil things. But for good people to do evil things, that takes religion." - Steven Weinburg
"Is God willing to prevent evil, but not able? Then he is not omnipotent.
Is he able, but not willing? Then he is malevolent.
Is he both able and willing? Then whence cometh evil?
Is he neither able nor willing? Then why call him God?"
- Epicurus
"The fact that a believer is happier than a skeptic is no more to the point than the fact that a drunken man is happier than a sober one." - George Bernard Shaw
"Lighthouses are more helpful than churches." - Benjamin Franklin