In a practical syllogism, the major premise is an opinion, while the minor premise deals with particular things, which are the province of perception. Now when the two premises are combined, just as in theoretic reasoning the mind is compelled to affirm the resulting conclusion, so in the case of practical premises you are forced at once to do it.
reasoningquotes
It is the mark of an educated man to look for precision in each class of things just so far as the nature of the subject admits; it is evidently equally foolish to accept probable reasoning from a mathematician and to demand from a rhetorician demonstrative proofs.
And in the same spirit should each person receive what we say: for the man of education will seek exactness so far in each subject as the nature of the thing admits, it being plainly much the same absurdity to put up with a mathematician who tries to persuade instead of proving, and to demand strict demonstrative reasoning of a Rhetorician.
education / mathematician / proving / reasoning / rhetorician
For it is the mark of an educated man to look for precision in each class of things just so far as the nature of the subject admits; it is evidently equally foolish to accept probable reasoning from a mathematician and to demand from a rhetorician scientific proofs.
The discovery of geometry had intoxicated them, and its a priori deductive method appeared capable of universal application. They would prove, for instance, that all reality is one, that there is no such thing as change, that the world of sense is a world of mere illusion; and the strangeness of their results gave them no qualms because they believed in the correctness of their reasoning.
Groups are capable of being as moral and intelligent as the individuals who form them; a crowd is chaotic, has no purpose of its own, and is capable of anything except intelligent action and realistic thinking. Assembled in a crowd, people lose their powers of reasoning and their capacity for moral choice.
The reasoning is classic in its clarity. If God does not exist, Kirilov is god. If God does not exist, Kirilov must kill himself. Kirilov must therefore kill himself to become god. That logic is absurd, but it is what is needed.