Ralph Waldo Emerson ~ (May 25, 1803 – April 27, 1882) American poet, philosopher and essayist.

Friedrich Wilhelm Nietzsche - (1844 -1900) German philosopher, cultural critic, composer, poet, philologist, and a Latin and Greek scholar.

Mark Twain (1835 - 1910) American writer, humorist, publisher, and lecturer.

Robert Louis Stevenson (1850-1894) Scottish novelist, poet, and travel writer. His most famous works are Treasure Island, Kidnapped, Strange Case of Dr Jekyll and Mr Hyde.