Philosophical questions are not by their nature insoluble. They are, indeed, radically different from scientific questions, because they concern the implications and other interrelations of ideas, not the order of physical events; their answers are interpretations instead of factual reports, and their function is to increase not our knowledge of nature, but our understanding of what we know.

Common-sense knowledge is prompt, categorical, and inexact.

Most new discoveries are suddenly-seen things that were always there.

Real thinking is possible only in the light of genuine language, no matter how limited, how primitive.

Every artistic form reflects the dynamism that is constantly building up the life of feeling.

One can bear anything of which one is able to conceive.

The intellectual treatment of any datum, any experience, any subject, is determined by the nature of our questions, and only carried out in the answers.