4 ideas
9103 | A universal is not a real feature of objects, but only a thought-object in the mind [William of Ockham] |
7783 | Bodies, properties, relations, events, numbers, sets and propositions are 'things' if they exist [Lowe] |
9807 | In pursuing truth, anything less certain than mathematics is a waste of time [Descartes] |
9104 | A universal is the result of abstraction, which is only a kind of mental picturing [William of Ockham] |