3 ideas
13083 | The essence is the necessary properties, and the concept includes what is contingent [Leibniz] |
8638 | Thomae's idea of abstract from peculiarities gives a general concept, and leaves the peculiarities [Frege on Thomae] |
7667 | There are two sides to men - the pleasantly social, and the violent and creative [Diderot, by Berlin] |