The Rationalists approach form in terms of the objective laws of perception. Basic factors governing the generation of form: (in order) SPACE -FORM - CONSTRUCTION.

"The taste of design involves more than a mere external reflection of its internal purpose; it also involves the creation of an image. The new architecture would be marked by the use of simple solid forms, and therefore methods need to be evolved whereby the geometrical characteristics of each solid could be hightlighted by architectural means. The architect should be able to stimulate the spectator's imagination through the conjunction of clearly intelligible forms."