<prompt> Translate the following text to EnglishAkiwa mwandishi wa vitabu zaidi ya 250 na msanii na mkusanyaji wa sanaa, labda anakumbukwa zaidi kama mwanatheoria wa kijamii; katika karne hii watu wengi mashuhuri, pamoja na Mahatma Gandhi, wameongozwa na maandishi yake.  <response>: Author of over 250 books and a prolific artist and art collector, he is perhaps best remembered as a social theorist; in this century many prominent figures, including Mahatma Gandhi, have been inspired by his writings. 