Selected quotation

"The hardest thing to understand is why we can understand anything at all."

~ Albert Einstein



Various books with quotations, aphorisms and proverbs:

The Wise and Witty Quote Book: More than 2000 Quotes to Enlighten, Encourage, and Enjoy

Best Quotations for All Occasions

The Book of Positive Quotations, 2nd Edition

The Ultimate Guide to the Perfect Word: Quotes - Titles - Poetry - Tips - Words

Apronisms: Pocket Wisdom for Every Day

8,789 Words of Wisdom

Positive Thinking Every Day: An Inspiration for Each Day of the Year

Chinese Proverbs

America's Popular Sayings: Over 1600 Expressions on Topics from Beauty to Money and Everything In Between

Everyday Positive Thinking

Bartlett's Familiar Quotations: A Collection of Passages, Phrases, and Proverbs Traced to Their Sources in Ancient and Modern Literature (17th Edition)

The Oxford Dictionary of Quotations