An ounce of algebra is worth a ton of verbal argument.

It was a reaction from the old idea of "protoplasm", a name which was a mere repository of ignorance.

So far from being an isolated phenomenon the late war is only an example of the disruptive result that we may constantly expect from the progress of science.

If materialism is true, it seems to me that we cannot know that it is true. If my opinions are the result of the chemical processes going on in my brain, they are determined by the laws of chemistry, not those of logic.

I am quite sure that our views on evolution would be very different had biologists studied genetics and natural selection before and not after most of them were convinced that evolution had occurred.

It wasn't until I had performed by first autopsy that I realized that even the drabest human exteriors could contain the most beautiful viscera. After that, I would console myself for the plainness of my fellow bus-riders by dissecting them in my imagination.

Shelley and Keats were the last English poets who were at all up to date in their chemical knowledge.