Only the very ignorant are perfectly satisfied that they know. To the common man the great problems are easy. He has no trouble in accounting for the universe. He can tell you the origin and destiny of man and the why and wherefore of things.
The man who invented the telescope found out more about heaven than the closed eyes of prayer ever discovered.
It is grander to think and investigate for yourself than to repeat a creed.
Commerce makes friends, religion makes enemies; the one enriches, and the other impoverishes; the one thrives best where the truth is told, the other where falsehoods are believed.
Intelligence is the only moral guide.
There are some truths, however, that we should never forget: Superstition has always been the relentless enemy of science; faith has been a hater of demonstration; hypocrisy has been sincere only in its dread of truth, and all religions are inconsistent with mental freedom.
He who commends the brutalities of the past, sows the seeds of future crimes.
We have at last ascertained that miracles can be perfectly understood; that there is nothing mysterious about them; that they are simply transparent falsehoods.
To know that the Bible is the literature of a barbarous people, to know that it is uninspired, to be certain that the supernatural does not and cannot exist – all this is but the beginning of wisdom.
If we should put god in the Constitution there would be no room left for man.
Why should we postpone our joy to another world? Let us get all we can of the good between the cradle and the grave, all that we can of the truly dramatic. If, when death comes, that is the end, we have at least made the best of this life.
If we are immortal it is a fact in nature, and we are not indebted to priests for it, nor to bibles for it, and it cannot be destroyed by unbelief.
A false friend, an unjust judge, a braggart, hypocrite, and tyrant, sincere in hatred, jealous, vain and revengeful, false in promise, honest in curse, suspicious, ignorant, infamous and hideous-such is the God of the Pentateuch.
My objection to Christianity is that it is infinitely cruel, infinitely selfish, and, I might add, infinitely absurd.
If a man wishes to have God recognized in the constitution of our country, let him read the history of the Inquisition, and let him remember that hundreds of millions of men, women, and children have been sacrificed to placate the wrath, or win the approbation of this god.
Today the intelligence of the world denies the miraculous. Ignorance is the soil of the supernatural. The foundation of Christianity has crumbled, has disappeared, and the entire fabric must fall. The natural is true. The miraculous is false.
Only those who live on the labor of the ignorant are the enemies of science. Real love and real religion are in no danger from science. The more we know the safer all good things are.
As a man develops, he places a greater value upon his own rights. Liberty becomes a grander and diviner thing. As he values his own rights he begins to value the rights of others. And when all men give to all others all the rights they claim for themselves, this world will be civilized.
Every flower about a house certifies to the refinement of somebody. Every vine climbing and blossoming tells of love and joy.
Logic is not satisfied with assertion. It cares nothing for the opinions of the great; nothing for the prejudices of the many, and least of all for the superstitions of the dead.