In the state of nature profit is the measure of right. – Thomas Hobbes
The right of nature… is the liberty each man hath to use his own power, as he will himself, for the preservation of his own nature that is to say, of his own life. – Thomas Hobbes
Science is the knowledge of consequences, and dependence of one fact upon another. – Thomas Hobbes
There is no such thing as perpetual tranquillity of mind while we live here because life itself is but motion, and can never be without desire, nor without fear, no more than without sense. – Thomas Hobbes