Ernest Sosa (born June 17, 1940) is an American philosopher primarily interested in epistemology.
Sosa received the 2010 Nicholas Rescher Prize for contributions to systematic philosophy, conferred by the University of Pittsburgh biennially.
[8] His son, David Sosa, is a professor and chair of the philosophy department at the University of Texas, Austin, and also specializes in epistemology.
"[9] Virtue epistemology is characterized by two features: against W. V. O. Quine, it views "epistemology as a normative discipline" and "intellectual agents and communities as the primary focus of epistemic evaluation, with a focus on the intellectual virtues and vices embodied in and expressed by these agents and communities.
A snowball is made of a piece of snow in a "round" (spherical) shape and follows certain persistence conditions.
A snowdiscall is "constituted by a piece of snow as matter and as form any shape between round [spherical] and being disc-shaped.
Conceptual schemes are mental collections of ideas of how the world exists and interacts.
A person's conceptual scheme helps select the things in the external world that resemble these mental ideas and then confers existence on them.