Sentence:  We must avoid the notion , suggested to some people by examples such as those just mentioned , that ideas are `` units '' in some way comparable to coins or <WSD>counters</WSD> that can be passed intact from one group of people to another or even , for that matter , from one individual to another . 
Meaning of the word marked with <WSD> tags:  game equipment (as a piece of wood, plastic, or ivory) used for keeping a count or reserving a space in various card or board games