Quotation:

 Benjamin Lee Whorf quotes (American Linguist noted for his hypotheses regarding the relation of language to thinking and cognition and for his studies of Hebrew and Hebrew ideas, 1897-1941)

 Henry David Thoreau quotes (American Essayist, Poet and Philosopher, 1817-1862)

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 Albert Einstein quotes (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)

 Johann Wolfgang von Goethe quotes (German Playwright, Poet, Novelist and Dramatist. 1749-1832)

 Proverb quotes

 Albert Einstein quotes (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)

 Voltaire quotes (French Philosopher and Writer. One of the greatest of all French authors, 1694-1778)

 Ralph Waldo Emerson quotes (American Poet, Lecturer and Essayist, 1803-1882)

 Albert Einstein quotes (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)

 Nikki Giovanni quotes (African-American Poet, b.1943)

 Harold Kushner quotes