Cynicism is one of the most striking of all the Hellenistic philosophies. It offered people the possibility of happiness and freedom from suffering in an age of uncertainty. Although there was never an official Cynic doctrine, the fundamental principles of Cynicism can be summarised as follows: 1. The goal of life is happiness which is to live in agreement with Nature. 2. Happiness depends on being self-sufficient, and a master of mental attitude. 3. Self-sufficiency is achieved by living a life of Arete. 4. The road to arete is to free oneself from any influence such as wealth, fame, or power, which has no value in Nature. 5. Suffering is caused by false judgments of value, which cause negative emotions and a vicious character.
Thus a Cynic has no property and rejects all conventional values of money, fame, power or reputation. A life lived according to nature requires only the bare necessities required for existence, and one can become free by unshackling oneself from any needs which are the result of convention.[11] The Cynics adopted Hercules as their hero, as epitomizing the ideal Cynic. Hercules "was he who brought Cerberus, the hound of Hades, from the underworld, a point of special appeal to the dog-man, Diogenes." According to Lucian, "Cerberus and Cynic are surely related through the dog."
The Cynic way of life required continuous training, not just in exercising one's judgments and mental impressions, but a physical training as well:
[Diogenes] used to say, that there were two kinds of exercise: that, namely, of the mind and that of the body; and that the latter of these created in the mind such quick and agile impressions at the time of its performance, as very much facilitated the practice of virtue; but that one was imperfect without the other, since the health and vigour necessary for the practice of what is good, depend equally on both mind and body.
None of this meant that the Cynic would retreat from