<https://blogs.bmj.com/medical-humanities/#/schema/person/image/>
<http://schema.org/contentUrl>
<https://secure.gravatar.com/avatar/7e33a2e10be711c6ce45060c3328a6b7?s=96&d=mm&r=g>
<https://blogs.bmj.com/medical-humanities/2021/02/15/man-can-do-what-he-wills-but-he-cannot-will-what-he-wills-on-the-freedom-of-the-will-arthur-schopenauer-1839/>