A plant, an animal, the regular order of nature-probably also the disposition of the whole universe-give manifest evidence that they are possible only by means of and according to ideas; that, indeed, no one creature, under the individual conditions of its existence, perfectly harmonizes with the idea of the most perfect of its kind-just as little as man with the idea of humanity, which nevertheless he bears in his soul as the archetypal standard of his actions; that, notwithstanding, these ideas are in the highest sense individually, unchangeably, and completely determined, and are the original causes of things; and that the totality of connected objects in the universe is alone fully adequate to that idea. (B 374)

Thoughts without intuitions are empty, intuitions without concepts are blind. (B 75)

Metaphysics has as the proper object of its enquiries three ideas only: God, freedom, and immortality. (B 395)

The light dove, cleaving the air in her free flight, and feeling its resistance, might imagine that its flight would be still easier in empty space. (B 8)

There is one living spirit, prevalent over this world ... which assumes a multitude of forms according to subordinate laws. There is one thinking sensible prin…

If he is not Nature herself, he is certainly the nature of Nature, and is the soul of the Soul of the world, if he is not the soul herself.

Metaphisics is a word that you, my dear Sir! are no great friend to / but yet you will agree, that a great Poet must be, implicite if not explicite, a profound…