That a man be willing, when others are so too, as far forth as for peace and defense of himself he shall think it necessary, to lay down this right to all things and be contented with so much liberty against other men, as he would allow other men against himself. – 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