A member of a <xref>sect</xref> of <xref>ancient Greek</xref> <xref>philosophers</xref> who believed <xref>virtue</xref> to be the only <xref>good</xref> and <xref>self-control</xref> to be the only <xref>means</xref> of achieving virtue.
User Defined Definitions
"someone who is critical of the motives of others"
"a member of a group of ancient Greek philosophers who advocated the doctrine that virtue is the only good and that the essence of virtue is self-control"