Amos Bronson Alcott – One must be a wise reader to quote wisely and well.
William R. Alger – Proverbs are mental gems gathered in the diamond districts of the mind.
Vicesimus Knox – It often happens that the quotations constitute the most valuable part of a book.
William B. Sprague – A collection of rare thoughts is nothing less than a cabinet of intellectual gems.
William Shakespeare, Hamlet – Brevity is the soul of wit.
Chinese Proverb – Good sayings are like pearls strung together.