“Beauty presents an indeterminate concept of Understanding, the sublime an indeterminate concept of Reason.”

“Toute intuition sans concept n'aboutit pasTout concept sans intuition est vide”

“Thoughts without content are empty, intuitions without concepts are blind.”

“Whereas the beautiful is limited, the sublime is limitless, so that the mind in the presence of the sublime, attempting to imagine what it cannot, has pain in the failure but pleasure in contemplating the immensity of the attempt”

“It is of great consequence to have previously determined the concept that one wants to elucidate through observation before questioning experience about it; for one finds in experience what one needs only if one knows in advance what to look for.”

“All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.”

“Enlightenment is man's release from his self incurred tutelage.Tutelage is man's inability to make use of his understanding without direction from another. Self-incurred is this tutelage when its cause lies not in lack of reason but in lack of resolution and courage to use it without direction from another. " Have courage to use your own reason" that's the motto of enlightenment .”