4 ideas
15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
22518 | The actual must be possible, because it occurred [Aristotle] |
16566 | Poetry is more philosophic than history, as it concerns universals, not particulars [Aristotle] |
7903 | The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna] |