display all the ideas for this combination of texts
2 ideas
| 224 | When questions are doubtful we should concentrate not on objects but on ideas of the intellect [Plato] |
| Full Idea: Doubtful questions should not be discussed in terms of visible objects or in relation to them, but only with reference to ideas conceived by the intellect. | |
| From: Plato (Parmenides [c.364 BCE], 135e) |
| 3738 | The hallmark of rationality is setting itself an end [Kant] |
| Full Idea: Rational nature separates itself out from all other things by the fact that it sets itself an end. | |
| From: Immanuel Kant (Groundwork of the Metaphysic of Morals [1785], 437.82) |