...the only simplicity to be trusted is the simplicity to be found on the far side of complexity.

In order to acquire learning, we must first shake ourselves free of it.

"One and one make two" assumes that the changes in the shift of circumstance are unimportant. But it is impossible for us to analyze this notion of unimportant change.

It is impossible to meditate on time and the mystery of nature without an overwhelming emotion at the limitations of human intelligence.

There is only one subject matter for education, and that is Life in all its manifestations

If you have had your attention directed to the novelties in thought in your own lifetime, you will have observed that almost all really new ideas have a certain aspect of foolishness when they are first produced, and almost any idea which jogs you out of your current abstractions may be better than nothing.

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.