“Reagents are regarded as acting by virtue of a constitutional affinity either for electrons or for nuclei... the terms electrophilic (electron-seeking) and nucleophilic (nucleus-seeking) are suggested... and the organic molecule, in the activation necessary for reaction, is therefore required to develop at the seat of attack either a high or low electron density as the case may be.”
![“[Flürscheim] was good at unanswerable arguments.…” quote by Christopher Kelk Ingold](https://sms4smile.com/quotes/img-quotes/bbf/christopher-kelk-ingold-69625_argument_fl-rscheim-was-good-at-unanswerable-argu_1508620.jpg)
