https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13968954Edit ImageSaveSaveEditCropCustom TextA man suffering from attack by blue devils; representing depression or mental illness. Coloured etching R. Newton, 1795, after himself.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 814 x 1200 px | 300 dpiLarge JPEG 2256 x 3324 px | 300 dpiFree DownloadA man suffering from attack by blue devils; representing depression or mental illness. Coloured etching R. Newton, 1795, after himself.More