Nikolay Onufriyevich Lossky (/藞l蓲ski/; Russian: 袧懈泻芯谢邪虂泄 袨薪褍虂褎褉懈械胁懈褔 袥芯虂褋褋泻懈泄; 6 December [O.S. 24 November] 1870 鈥� 24 January 1965) was a Russian philosopher, representative of Russian idealism, intuitionist epistemology, personalism, libertarianism, ethics and axiology (value theory). He gave his philosophical system the name intuitive-personalism. Born in Latvia, he spent his working life in St. Petersburg, New York, and Paris. He was the father of the influential Christian theologian Vladimir Lossky.