Formulae are the anaesthetics of thought, not its stimulants and to make any one think is far better worth while than cramming him with ill-considered, and therefore indigestible, learning.
Legitimized love always despises its easygoing brother Like all women, being very fond of indigestible things Presence of a woman, that sovereign inspiration Spirit of order and arithmetic in the business house Subtleties of expression to describe the most improper things Thin veneer of modesty of every woman Thrill of furious and bestial anger which urges on a mob to massacre .
The cookbook gives a detailed description of ingredients and procedures but no proofs for its prescriptions or reasons for its recipes; the proof of the pudding is in the eating. ... Mathematics cannot be tested in exactly the same manner as a pudding; if all sorts of reasoning are debarred, a course of calculus may easily become an incoherent inventory of indigestible information.george pólya
Up to here, in general, we have mainly stuffed the brain of the young people with a indigestible multitude of varios notions, without thinking about enough of the prime necessity to form their character.african spir