Date: 1785

"Modern Philosophers, as well as the Peripatetics and Epicureans of old, have conceived, that external objects cannot be the immediate objects of our thought; that there must be some image of them in the mind itself, in which, as in a mirror, they are seen."

— Reid, Thomas (1710-1796)

Date: w. August 30, 1783, printed 1788

"I advised our Miss H--- to the same remedy, but have a notion her mind is haunted by one particular image; if so, nothing will cure her; for if the heart be broken 'tis broken like a looking-glass, and the smallest piece will for ever preserve and reflect the same figure till 'tis again ground d...

— Piozzi, [née Salusbury; other married name Thrale] Hester Lynch (1741-1821)

Date: 1818, 1859

"Now this is by no means possible, for as soon as we turn into ourselves to make the attempt, and seek for once to know ourselves fully by means of introspective reflection, we are lost in a bottomless void; we find ourselves like the hollow glass globe, from out of which a voice speaks whose cau...

— Schopenhauer, Arthur (1788-1860)