The Guide for the Perplexed Quotes

“[...] One chief difference between the medieval "scientist" and the scientist of to-day[1948] lies in the nature of the first principles accepted and in the attitude adopted toward them. The modern scientist has seen the breakdown of too many first principles to accept any as eternal truths. He proceeds inductively, building up slowly on the basis of observed facts. His attitude to his own (or at least to his brother's scientist) first principles is one of hesitation, even suspicion. He looks on them as "working hypotheses" to be modified or changed in the light of further experience. The older scientist, although he too realized that his function wa to explain facts, closed the door on fresh evidence too soon. The modern, at least in theory, keeps it always open.

But there is a further and perhaps more interesting difference between them. The medieval thinker aimed at comprehensiveness. he seems not to be satisfied with anything short of the whole. The modern thinker is more modest and seeks the key not to the universe but to one group of facts within it. He likes to break problems up and resolve them bit by bit. He is not interested (that is professionally speaking) in the world as a whole, but only in one small corner of it.

Herein lies the traditional distinction between "science" and "philosophy." both science and philosophy try to discover principles and interpret detail in their light; but whereas science tries to clear up small areas of the world, philosophy aims at the world as a whole. it stands in relation to the various sciences much as each science stands in relation to the various sciences much as each science stands in relation to its particular subject-matter. It is the science which seeks to reduce to the scientific unity and order the results of the various sciences. [...]”
― Leon Roth, The Guide for the Perplexed