Selected quotation
"Every age has its own poetry; in every age the circumstances of history choose a nation, a race, a class to take up the torch by creating situations that can be expressed or transcended only through poetry."
~ Jean-Paul Sartre, "Black Orpheus"
Various books with quotations, aphorisms and proverbs:
Bartlett's Familiar Quotations: A Collection of Passages, Phrases, and Proverbs Traced to Their Sources in Ancient and Modern Literature (17th Edition)
America's Popular Sayings: Over 1600 Expressions on Topics from Beauty to Money and Everything In Between
The Wise and Witty Quote Book: More than 2000 Quotes to Enlighten, Encourage, and Enjoy
The Yale Book of Quotations
Chinese Proverbs
The Ultimate Guide to the Perfect Word: Quotes - Titles - Poetry - Tips - Words
The Most Brilliant Thoughts of All Time (In Two Lines or Less)
Doonesbury.com's The War in Quotes
The Proverbs Driven Life: Timeless Wisdom for Your Words, Work, Wealth, and Relationships
101 French Proverbs
365 Inspirational Quotes (365 Days Perpetual Calendars)
Ancient Wisdom: The Book of Proverbs With Devotions for Today