Bartlett's Familiar Quotations has been the go-to compilation of quotes for over 150 years. There have been 18 editions since it first came out in 1855. You may want to download the app for your phone to have quotes always at your fingertips! It costs $3.99.

"In mobilizing support for a project or policy it is especially agreeable to be able to call upon the distinguished dead; their distinction adds intellectual weight and moral force to the argument, and their death makes it impossible to appear on television later and say that they meant something completely different." 

Antony Jay quoted in Elizabeth Knowles' 'and I Quote... ' : A History of Using Other People's Words, Oxford University Press, 2018. ProQuest Ebook Central, http://ebookcentral.proquest.com/lib/furman/detail.action?docID=5515986.