Date: 1464

"For Simple Being, which is visible to the mind alone, is to the mind as the being of color is to the sense of sight."

— Nicholas of Cusa (1401-1464)

Date: 1464

" [I]f someone were to turn his mind's sight to the possibility, or power, of oneness: he surely would see in every number and in all plurality only oneness's power"

— Nicholas of Cusa (1401-1464)

Date: 1464

"Therefore, my dearly beloved Peter, with keen directedness turn your mind's eye to this secret, and with this analysis enter into my writings and into whatever other writings you read, and occupy yourself especially with my books and sermons."

— Nicholas of Cusa (1401-1464)

Date: 1774, rev. 1787, 1779 in English

"Solitude in this terrestrial paradise is a medicine to my mind. The delight of spring touches my heart, and gives fresh vigour to my soul."

— Goethe, Johann Wolfgang (1749-1832)

Date: 1774, rev. 1787, 1779 in English

"Distance, my dear friend, is like futurity; a darkness is placed before us, and the perceptions of our mind are as obscure as distant objects are to our sight."

— Goethe, Johann Wolfgang (1749-1832)

Date: 1774, rev. 1787, 1779 in English

"What consolation she is capable of giving to the sick, I have myself experienced, for my heart is much diseased."

— Goethe, Johann Wolfgang (1749-1832)

Date: 1785

"One cannot give too many or too frequent warnings against this laxity, or even mean cast of mind, which seeks its principle among empirical motives and laws; for,human reason in its weariness gladly rests on this pillow and in a dream of sweet illusions (which allow it to embrace a cloud instead...

— Kant, Immanuel (1724-1804)

Date: 1807

"The individual whose substance is the more advanced Spirit runs through this past just as one who takes up a higher science goes through the preparatory studies he has long since absorbed, in order to bring their content to mind: he recalls them to the inward eye, but has no lasting interest in ...

— Hegel, G. W. F. (1770-1831)

Date: 1805-6, published 1833-6

"Kant however places the matter somewhat in this fashion: there are things-in-themselves outside, but devoid of time and space; consciousness now comes, and it has time and space beforehand present in it as the possibility of experience, just as in order to eat it has mouth and teeth, &c., as con...

— Hegel, G. W. F. (1770-1831)

Date: 1805-6, published 1833-6

"Knowledge itself is in fact the unity and truth of both moments; but with Kant the thinking understanding and sensuousness are both something particular, and they are only united in an external, superficial way, just as a piece of wood and a leg might be bound together by a cord."

— Hegel, G. W. F. (1770-1831)