These are names which we give to groups of phenomena displaying particular and differential characteristics, and their purpose is served when they enable us to cognize and recognize these phenomena and to give them their place and describe their function in the series of changes that make up our world.
"A Grammar of Freethought"
Chapman Cohen
Consequently he never had occasion to inquire whether anything whatsoever was possible which his senses or the senses of other witnesses seemed to cognize.
"Witchcraft of New England Explained by Modern Spiritualism"
Allen Putnam
See'st thou, then, how all things in cognizing use rather their own faculty than the faculty of the things which they cognize?
"The Consolation of Philosophy"
Boethius