“Furthermore, they must learn not to make the elementary mistake of assuming that because a word contains a negative suffix or prefix it is necessarily a negative word. In-, for instance, almost always implies negation but not with invaluable, while -less is equally negative, as a rule, but not with priceless.”

“Furthermore, they must learn not to make the elementary mistake of assuming that because a word contains a negative suffix or prefix it is necessarily a negative word. In-, for instance, almost always implies negation but not with invaluable, while -less is equally negative, as a rule, but not with priceless.”

— Bill Bryson