The Principles of Psychology
To the reader who is tired of so much Erkenntnisstheorie I can only say that I am so myself, but
that it is indispensable, in the actual state of opinions about Sensation, to try to clear up just what
the word means. Locke's pupils seek to do the impossible with sensations, and against them we
must once again insist that sensations 'clustered together' cannot build up our more intellectual
states of mind