"I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."
Viereck interview (1929)
~Albert Einstein (14 March 1879 – 18 April 1955)
Books about or by Einstein at PG:
https://www.gutenberg.org/ebooks/search/?query=albert+einstein&submit_search=Search