Burke believed that <answer>property</answer> was essential to human life. Because of his conviction that people desire to be ruled and controlled, the division of <answer>property</answer> formed the basis for social structure, helping develop control within a <answer>property</answer>-based hierarchy. He viewed the social changes brought on by <answer>property</answer> as the natural order of events, which should be taking place as the human race progressed. With the division of <answer>property</answer> and the class system, he also believed that it kept the monarch in check to the needs of the classes beneath the monarch. Since <answer>property</answer> largely aligned or defined divisions of social class, class too, was seen as natural—part of a social agreement that the setting of persons into different classes, is the mutual benefit of all subjects. Concern for <answer>property</answer> is not Burke's only influence. As Christopher Hitchens summarises, "If modern conservatism can be held to derive from Burke, it is not just because he appealed to <answer>property</answer> owners in behalf of stability but also because he appealed to an everyday interest in the preservation of the ancestral and the immemorial."
What did Burke think was crucial for human life?
property