Selected quotation

"The hardest thing to understand in the world is the income tax."

~ Albert Einstein



Various books with quotations, aphorisms and proverbs:

The Most Brilliant Thoughts of All Time (In Two Lines or Less)

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

The Oxford Dictionary of Quotations

Everyday Positive Thinking

Great Quotes from Great Leaders

The Proverbs Driven Life: Timeless Wisdom for Your Words, Work, Wealth, and Relationships

The Yale Book of Quotations

Apronisms: Pocket Wisdom for Every Day

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

101 French Proverbs