"Graphic design which fulfills the aesthetic needs, complies with the laws of form and exigencies of two-dimensional space; which speaks in semiotics, san-serifs, and geometrics; which abstracts, transforms, translates, rotates, dilates, repeats, mirrors, groups and regroups is not good design if it is irrelevant."
-Paul Rand
"Here is one of the few effective keys to the design problem - the ability of the designer to recognize as many of the constraints as possible - his willingness and enthusiasm for working within these constraints. Constraints of price, of size, of strength, of balance, of surface, of time and so forth."
-Charles Eames