Isaac Newton quotes (English Mathematician and Physicist, "father of the modern science", 1642-1727)
Albert Einstein quotes (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)
Robert McCloskey quotes
Dr. Seuss quotes (American Writer and Cartoonist best known for his collection of children's books. 1904-1991)
Ayn Rand quotes (Russian born American Writer and Novelist, 1905-1982)