Final answer:
The four concepts refer to various philosophical and ethical teachings: the Beatitudes from Christian doctrine, dispossession of goods from Plato's 'The Republic,' pacifism as a non-violent principle, and strict self-control as advocated in traditions like Stoicism and Buddhism.
Step-by-step explanation:
The four concepts mentioned in the content relate to philosophical and ethical frameworks from various philosophical traditions. The Beatitudes refer to a set of teachings by Jesus that appear in the Gospel of Matthew, emphasizing humility, mercy, and righteousness. The term dispossession of goods can be related to Plato's idea in 'The Republic,' where the accumulation of wealth is discouraged, thereby promoting social harmony by having communal property. Pacifism is the belief in resolving conflicts without violence, and it has been advocated by various religious and secular movements. Lastly, strict self-control is a common tenet in many philosophical and religious traditions, such as Stoicism and Buddhism, emphasizing the regulation of one's own actions and desires to achieve a moral life.