The main aim of this article is to examine meaning of 'nature', 'state of nature' and 'natural condition of mankind' in the political doctrine of Thomas Hobbes. It should be emphasised that is a matter of notion 'nature', not a Hobbes' description of natural state. Some posibilities are taken into consideration: 'nature' as an essence, 'nature' ('state of nature') as a wildness, 'nature' as opposed to 'artificial', 'nature' as an abstract conception of human individual. To emphasize the importance of title problem, it's showed against a background of classical (greek and christian) idea of zoon politikon. It seemed justified because Hobbes' political doctrine is considered (even by Hobbes) as opposed to classical understanding of human nature. In the recapitulation of this thesis author tries to indicate the reasons of Hobbes' doctrine obscurity and consequences of this obscurity for modern political ideas.