File:Spinoza.jpgEnglish Portrait of Baruch Spinoza by anonymous painter, circa 1665. Herzog August Library, Wolfenbüttel. Dutch Baruch Spinoza
File:Spinoza Ethica.jpgSpinoza's Ethica. Source: http://www1.odn.ne.jp/gakuju/kyokai/spkLocator-e.html https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons