Aristotle,
Organon
(1853)
“ But those are termed dispositions, which are easily moved and quickly changed, as heat, cold, disease, health, and such things; or a man is disposed, after a manner, according to these, but is rapidly changed, from hot becoming cold, and from health passing to disease, and in like manner as to other things, unless some one of these qualities has, from length of time, become natural, immovable, or at least difficult to be moved, in which case we may term it a habit. ”
