John Wesley Powell,
Truth and Error — Chapter XVIII.
(1898)
“ Ideation, as the term is here used, is a cognition of intellections in that manifestations of intellections are cognized by forming concepts of them. In sensation manifestations are conceived as expressions of kind. In perception they are conceived as expressions of form; in apprehension they are conceived as expressions of force; in reflection they are conceived as expressions of cause and effect; in ideation they are conceived as expressions of mind. ”
