Knowledge that is possessed by humans and requires reflective awareness of the justification and reliability of beliefs, involving critical thinking and self-reflection.
The theory that knowledge is a true belief that is formed by intellectual virtues, such as intellectual honesty, open-mindedness, and intellectual rigor.
Different categories of knowledge include practical knowledge (knowing 'how' to do something), knowledge by acquaintance (knowing 'of' someone or something), and propositional knowledge (knowing 'that' something is true).