The aim of science is to seek the simplest explanation of complex facts... Seek simplicity and distrust it.

There is no more common error than to assume that, because prolonged and accurate mathematical calculations have been made, the application of the result to some fact of nature is absolutely certain.

Every organism requires an environment of friends, partly to shield it from violent changes, and partly to supply it with its wants.

Speech is human nature itself, with none of the artificiality of written language.

There is no greater hindrance to the progress of thought than an attitude of irritated party-spirit.

Aristotle discovered all the half-truths which were necessary to the creation of science.

The teleology of the Universe is directed to the production of Beauty... The type of Truth required for the final stretch of Beauty is a discovery and not a recapitulation... Apart from Beauty, Truth is neither good, nor bad... Truth matters because of beauty.