This is indispensable for writing,
This review is from: Bartlett's Familiar Quotations: 17th edition (Hardcover)
I like this book and look for odd sayings to spring on people at work. The index is just large enough to find things that you were not looking for. Nothing punches up a memo better than a relevant quote.
However if you are of limited funds you need to look at Bartlett's Roget's Thesaurus ISBN: 0316101389, first. There are not as many good quotes but the combination of Bartlett and Roget's is better by far than either one alone.
Bartlett's Roget's Thesaurus