I do not believe that the tendency is to make men and women brave and glorious when you tell them that there are certain ideas upon certain subjects that they must never express; that they must go through life with a pretence as a shield; that their neighbors will think much more of them if they will only keep still; and that above all is a God who despises one who honestly expresses what he believes.

I have no reverence for any book that teaches a doctrine contrary to my reason; no reverence for any book that teaches a doctrine contrary to my heart; and, no matter how old it is, no matter how many have believed it, no matter how many have died on account of it, no matter how many live for it, I have no reverence for that book, and I am glad of it.

Shakespeare was an intellectual ocean, whose waves touched all the shores of thought; within which were all the tides and waves of destiny and will; over which swept all the storms of fate, ambition and revenge; upon which fell the gloom and darkness of despair and death and all the sunlight of content and love, and within which was the inverted sky lit with the eternal stars -- an intellectual ocean -- toward which all rivers ran, and from which now the isles and continents of thought receive their dew and rain.

Burns had his faults, his frailties. He was intensely human. Still, I would rather appear at the "Judgment Seat" drunk, and be able to say that I was the author of "A man's a man for 'a that," than to be perfectly sober and admit that I had lived and died a Scotch Presbyterian.

In the search for truth - that everything in nature seems to hide - man needs the assistance of all his faculties. All the senses should be awake.

To hate man and worship God seems to be the sum of all the creeds.

Our ignorance is God; what we know is science. When we abandon the doctrine that some infinite being created matter and force, and enacted a code of laws for their government ... the real priest will then be, not the mouth-piece of some pretended deity, but the interpreter of nature.