273 ;;Quote: in studies found 'if p..not p' far easier to understand than 'if..then..else'; later never used in natural languages

274 ;;Quote: Roman numerals demonstrate that notation matters; they were an important advance over the Greek system of one number per letter

306 ;;Quote: a good programmer builds an intuitive plan which is proved by the program

307 ;;Quote: good programs need not be written top-down; even if the final result looks well structured

307 ;;Quote: in checking a program, the program is de-programmed to see if it re-creates the original specification

307+;;Quote: an easy to read program is easier to write since programmers must check their work

313 ;;Quote: many programming constructs, may be better than one or two general-purpose constructions

313+;;Quote: people can cope with many programming constructs as long as they can easily discriminate them

314 ;;Quote: if it is hard to understand something, it is hard to find inspirations and to avoid mistakes