Now the concept of a thing whose existence or form we represent to ourselves as possible under the condition of a purpose is inseparably bound up with the concept of its contingency (according to natural laws). Hence the natural things that we find possible only as purposes supply the best proof of the contingency of the world-whole; to the common Understanding and to the philosopher alike they are the only valid ground of proof for its dependence on and origin from a Being existing outside the world — a Being who must also be intelligent on account of that purposive form.

Teleology then finds the consummation of its investigations only in Theology.

But what now in the end does the most complete Teleology prove? Does it prove that there is such an intelligent Being? No.