The conflicts followed Schopenhauer beyond his professional life. While living in Berlin, he was convicted of assaulting a woman named Caroline Marquet who refused to leave her door, and to whom he had to make regular payments for the rest of her life.
In 1833, following a cholera outbreak in Berlin, Schopenhauer moved to Frankfurt. There he lived alone for the next three decades, accompanied by poodles and domestic cats. His writings on aging were finally published under the title Senilia.
Writing of Schopenhauer focused on extensive research on individual motivation. Unlike Hegel, Schopenhauer believed that human beings were motivated by their own basic desires rather than broader social tendencies. He considered human action devoid of direction, and saw desire as the root of suffering and pain. Artistic contemplation, he argued, offered temporary relief from this pain.
The welfare of animals was a major concern to him, who believed that animals and humans were fundamentally equal in their self-centered motivations. He was a committed lover of pets, who denounced the philosophical arguments that placed human lives above those of animals.
He was also a devotee of Sanskrit literature and had a strong interest in Buddhism, in which he saw strong comparisons with his own beliefs.