A man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not understanding.
imaginequotes
A man may imagine things that are false, but he can only understand things that are true.
false / imagine / true / understand
That the objective world would exist even if there existed no conscious being certainly seems at the first blush to be unquestionable because it can be thought in the abstract, without bringing to light the contradiction which it carries within it. But if we desire to realize this abstract thought, that is, to reduce it to ideas of perception, from which alone (like everything abstract) it can have content and truth, and if accordingly we try to imagine an objective world without a knowing subject, we become aware that what we then imagine is in truth the opposite of what we intended, is in fact nothing else than the process in the intellect of a knowing subject who perceives an objective world, is thus exactly what we desired to exclude. For this perceptible and real world is clearly a phenomenon of the brain; therefore there lies a contradiction in the assumption that as such it ought to exist independently of all brains.
I am accustomed to sleep and in my dreams to imagine the same things that lunatics imagine when awake.