Quotation:

 Oliver Wendell Holmes quotes (American Physician, Poet, Writer, Humorist and Professor at Harvard, 1809-1894)

 Oliver Wendell Holmes quotes (American Physician, Poet, Writer, Humorist and Professor at Harvard, 1809-1894)

 Oliver Wendell Holmes quotes (American Physician, Poet, Writer, Humorist and Professor at Harvard, 1809-1894)

 Oliver Wendell Holmes quotes (American Physician, Poet, Writer, Humorist and Professor at Harvard, 1809-1894)

 Oliver Wendell Holmes quotes (American Physician, Poet, Writer, Humorist and Professor at Harvard, 1809-1894)

 George Bernard Shaw quotes (Irish literary Critic, Playwright and Essayist. 1925 Nobel Prize for Literature, 1856-1950)

 Winston Churchill quotes (British Orator, Author and Prime Minister during World War II. 1874-1965)

 Oliver Wendell Holmes quotes (American Physician, Poet, Writer, Humorist and Professor at Harvard, 1809-1894)

 Oliver Wendell Holmes quotes (American Physician, Poet, Writer, Humorist and Professor at Harvard, 1809-1894)

 Oliver Wendell Holmes quotes (American Physician, Poet, Writer, Humorist and Professor at Harvard, 1809-1894)

 Lao Tzu quotes (Chinese taoist Philosopher, founder of Taoism, wrote "Tao Te Ching" (also "The Book of the Way"). 600 BC-531 BC)