(no subject)
"If we take away the subject (Humans), or even only the subjective constitution of our senses in general, then not only the nature and relations of objects in space and time, but even space and time themselves disappear; and that these, as appearances, cannot exist in themselves, but only in us. What may be the nature of objects considered as things in themselves and without reference to the receptivity of our sensibility is quite unknown to us. .... not only are the raindrops mere appearances, but even their circular (spherical) form, nay, the space itself through which they fall (motion), is nothing in itself, but both are mere modifications or fundamental dispositions of our sensible intuition, whilst the transcendental object remains for us utterly unknown."
(Immanuel Kant, Critique of Pure Reason, 1781)