HUMANIST
VALUES 223
are straight. No doubt
the straight lines whichboundtherectangular
formsofarchitecture,itsdoorsanditswindows,arechieflyrealised,notassensationsinthemselves,but asdefinitions
oftheshapestheyenclose. Theirchiefuseistodeterminethepositionofapatchuponagiven surface
;and theaestheticvalueofthiswill beconsideredin a moment. But/any
emphasisuponverticallinesimmediatelyawakensinusasenseof
upwarddirection, andlines whichare spread—horizontal lines
—
convey suggestionsofrest\ Thus thearchitecthasalready,inthelinesofadesign,aconsiderableopportunity. Hecontrols
thepath of the eye
;the path we follow is our
movement
;movementdeterminesourmood,
/feutlineisnotthesolemeansofaifectingoursenseofmovement. Space,also,controlsit. Spacesmay
beintwodimensionsorinthree\ Wemay
considerthesimplercasefirst. Alarge partofarchitectural
design con^sts in the arrangementof forms uponsurfaces, thatis to say, within spaces.The part
which movement
here plays will be clear from acommoninstance. Aman
whoisarrangingpictures
onawallwill say thatone is'crowded'or'lost'in the space it occupies,that it'wants tocome'upordown.That istosay,the positionofformsupon asurfaceis realised interms ofour physicalconsciousness. Ifacertain patch'wantstocome'down, we
ourselves,byourunconsciousimitationof