"In all the sciences except Psychology we deal with objects and their changes, and leave out of account as far as possible the mind which observes them"

This quote by Charles D. Broad talks to the distinction between the sciences and psychology. Broad recommends that in all sciences aside from psychology, the focus is on the objects and their changes, and the mind that observes them is neglected of the equation. This indicates that psychology is unique because it is the only science that takes into account the mind of the observer. Broad's quote suggests that psychology is a science that is focused on comprehending the mind and its processes, instead of the physical things and their changes. This is in contrast to other sciences, which concentrate on the physical objects and their modifications, and overlook the mind of the observer. Broad's quote highlights the value of psychology in comprehending the mind and its processes, and how it differs from other sciences.