Well, basically what it says on the tin. I mean, to quote an easily edited/untrustable source (wikipedia,ofc): "Their philosophy was that the purpose of life was to live a life of Virtue in agreement with Nature."
"They believed that the world belonged equally to everyone, and that suffering was caused by false judgments of what was valuable and by the worthless customs and conventions which surrounded society."
"They believed that the world belonged equally to everyone, and that suffering was caused by false judgments of what was valuable and by the worthless customs and conventions which surrounded society."