The dogma of the infallibility of the Bible is no more self-evident than is that of the infallibility of the popes.

I took thought, and invented what I conceived to be the appropriate title of 'agnostic'.

I wish you would let an old man, who has had his share of fighting, remind you that battles, like hypotheses, are not to be multiplied beyond necessity.

Whatever evil voices may rage, Science, secure among the powers that are eternal, will do her work and be blessed.

Matter and force are the two names of the one artist who fashions the living as well as the lifeless.

I have never been able to understand why pigeon-shooting at Hurlingham should be refined and polite, while a rat-killing match in Whitechapel is low.

The only question which any wise man can ask himself, and which any honest man will ask himself, is whether a doctrine is true or false.