12. Formal Logic I
We shall now see how one comes to know a certain legitimate connection in order to be able to find a number of such figures. Correct thinking proceeds according to quite definite such figures of inference; otherwise it is just wrong thinking. But things are not always as easy as in this example. Merely from the fact that the conclusions are wrong, one could often find out today, from even the most learned books, that what has been said cannot be true. Thus there are inner laws of thinking like the laws of mathematics; one could say an arithmetic of thinking. Now you can imagine the ideal of correct thinking: all concepts must be formed according to the laws of formal logic. However, formal logic has certain limits. These limits must be applied to the human mind. This would lead to correct insights and recognize the nature of fallacies. By all rules of logic, it would conform to the laws of logic if we said: