Being a "noumenon," it is not a phenomenon; being a "thing in itself," it is not what things are to us.

The "colligation" of the facts, to use Whewell's phrase, is not a phenomenon, but a noumenon.

What signified their endless pages about dualism and monism, about phenomenon and noumenon?

But then there is the Ding an sich, the Noumenon, or Kantian equivalent for the substance of the soul.

He called it the "noumenon," the "real correlate of matter," and pluralized it as "things in themselves."

But he insisted, as firmly as Herbert Spencer has since done, that the "noumenon" is "unknown and unknowable."

The conception of a noumenon is therefore merely a limitative conception and therefore only of negative use.

If we wish to call this object a noumenon, because the representation of it is non-sensuous, we are at liberty to do so.

The noumenon is a bit difficult to locate; it can be apprehended only be a process of reasoning—which is a phenomenon.

Humanity is ever seeking the Reality—the Noumenon, which we intuitively postulate as behind the phenomena of Nature.