Selected quotation
"I like trees because they seem more resigned to the way they have to live than other things do."
~ Willa Cather, "O Pioneers!"
Various books with quotations, aphorisms and proverbs:
The Wise and Witty Quote Book: More than 2000 Quotes to Enlighten, Encourage, and Enjoy
Offerings: Buddhist Wisdom for Every Day (Offerings for Humanity)
8,789 Words of Wisdom
The Book of Positive Quotations, 2nd Edition
Bartlett's Familiar Quotations: A Collection of Passages, Phrases, and Proverbs Traced to Their Sources in Ancient and Modern Literature (17th Edition)
Doonesbury.com's The War in Quotes
The Yale Book of Quotations
A Continual Feast: Words of Comfort and Celebration, Collected by Father Tim
Everyday Positive Thinking
Great Quotes from Great Leaders
The Proverbs Driven Life: Timeless Wisdom for Your Words, Work, Wealth, and Relationships
Chinese Proverbs