Selected quotation
"The reasonable man adapts himself to the world. The unreasonable man persists in trying to adapt the world to himself. All progress, therefore, depends upon the unreasonable man."
~ George Bernard Shaw
Various books with quotations, aphorisms and proverbs:
Great Quotes from Great Leaders
The Book of Positive Quotations, 2nd Edition
8,789 Words of Wisdom
America's Popular Sayings: Over 1600 Expressions on Topics from Beauty to Money and Everything In Between
Bartlett's Familiar Quotations: A Collection of Passages, Phrases, and Proverbs Traced to Their Sources in Ancient and Modern Literature (17th Edition)
Best Quotations for All Occasions
Oxymoronica: Paradoxical Wit & Wisdom From History's Greatest Wordsmiths
Offerings: Buddhist Wisdom for Every Day (Offerings for Humanity)
Ancient Wisdom: The Book of Proverbs With Devotions for Today
Apronisms: Pocket Wisdom for Every Day
The Yale Book of Quotations
The Proverbs Driven Life: Timeless Wisdom for Your Words, Work, Wealth, and Relationships