These Lectures are devoted to the consideration of the proofs of the existence of God. The occasion for them is this. I had at first to make up my mind to give only one set of lectures in this summer session on philosophical knowledge as a whole, and then afterwards I felt I would like to add a second set on at least one separate subject of knowledge. I have therefore chosen a subject which is connected with the other set of lectures which I gave on logic, and constitutes, not in substance, but in form, a kind of supplement to that set, inasmuch as it is concerned with only a particular aspect of the fundamental conceptions of logic. These lectures are therefore chiefly meant for those of my hearers who were present at the others, and to them they will be most easily intelligible.
But inasmuch as the task we have set ourselves is to consider the proofs of the existence of God, it would appear as if only one aspect of the matter belongs to the subject of logic, namely, the nature of proof. The other, again, the content, which is God Himself, belongs to a different sphere, that of religion, and to the consideration of it by thought, to the philosophy of religion. In point of fact, it is a portion of this branch of knowledge which has to be set apart and treated by itself in these lectures. In what follows it will more clearly be seen what relation this part bears to the entirety of the doctrine of religion; and further, that this doctrine in so far as it is scientific, and what belongs to the sphere of logic, do not fall outside one another to the extent that would appear from the first statement of our aim, and that what is logical does 155
