Selected quotation
"What soap is for the body, tears are for the soul."
~ Jewish proverb
Various books with quotations, aphorisms and proverbs:
Great Quotes from Great Leaders
Everyday Positive Thinking
The Yale Book of Quotations
Ancient Wisdom: The Book of Proverbs With Devotions for Today
The Proverbs Driven Life: Timeless Wisdom for Your Words, Work, Wealth, and Relationships
Bartlett's Familiar Quotations: A Collection of Passages, Phrases, and Proverbs Traced to Their Sources in Ancient and Modern Literature (17th Edition)
The Wise and Witty Quote Book: More than 2000 Quotes to Enlighten, Encourage, and Enjoy
The Oxford Dictionary of Quotations
Apronisms: Pocket Wisdom for Every Day
Chinese Proverbs
Best Quotations for All Occasions
8,789 Words of Wisdom