What Reference Librarians Can Further Do to Help Our American Democracy in It’s Efforts for Protection,” by Luther Harris Evans, December 29, 1940 
"The reference librarian must think ahead, and who in our society is freer to think ahead in broad terms of social strategy than the reference librarian? He can feel the beginning breezes of new movements and new developments…and watch the literature develop. The cataloger in his storm cellar does not feel these breezes, as he waits for the floor to cave in upon him under the weight of his material before setting up a new subject heading."

What Reference Librarians Can Further Do to Help Our American Democracy in It’s Efforts for Protection,” by Luther Harris Evans, December 29, 1940 

"The reference librarian must think ahead, and who in our society is freer to think ahead in broad terms of social strategy than the reference librarian? He can feel the beginning breezes of new movements and new developments…and watch the literature develop. The cataloger in his storm cellar does not feel these breezes, as he waits for the floor to cave in upon him under the weight of his material before setting up a new subject heading."

(Source: hdl.loc.gov)