Quotes arranged by broad subjects. Has extensive keyword index and also an author index. Oxford Dictionary of Quotations. Ref PN6080 O95. Arranged by author.
Superb index gives author after each keyword.
Simpson's Contemporary Quotations. Type in a word or words from the quotation and you will get the full quote and the source. Treasury of the Familiar. Ref PN6014 W119. Has a line index and a subject index.