Selected quotation
"Speech is a mirror of the soul: as a man speaks, so is he."
~ Publilius Syrus, "Sentences"
Various books with quotations, aphorisms and proverbs:
101 French Proverbs
A Continual Feast: Words of Comfort and Celebration, Collected by Father Tim
Apronisms: Pocket Wisdom for Every Day
The Book of Positive Quotations, 2nd Edition
Doonesbury.com's The War in Quotes
The Proverbs Driven Life: Timeless Wisdom for Your Words, Work, Wealth, and Relationships
Everyday Positive Thinking
The Yale Book of Quotations
365 Inspirational Quotes (365 Days Perpetual Calendars)
Ancient Wisdom: The Book of Proverbs With Devotions for Today
Chinese Proverbs
Bartlett's Familiar Quotations: A Collection of Passages, Phrases, and Proverbs Traced to Their Sources in Ancient and Modern Literature (17th Edition)