@Theages,
Theages;67904 wrote:1. If philosophy is in decline, when did it reach its apex? When was it ascending?
2. Which particular "issues" do you have in mind?
I believe these words of Mortimer Adler answer Question 1:
"Crises in Philosophy --
The first of these crises is a crisis that occurred in the seventeenth
century, beginning with Descartes, in France, with Hobbes, in England,
and going on with Spinoza and Leibnitz on the continent. It
continued in Locke, and Berkeley, and Hume, coming to a crisis
that really turned modern philosophy upside down with Immanuel
Kant at the end of the eighteenth century.
These are the great modern philosophers, and they
are great because
they are great thinkers, even though they made extraordinary
mistakes. The mistakes they made turned philosophy from the path
of common sense and common experience, and got it into one
muddle after another. All these mistakes stemmed, I think, from
neglect or ignorance of the philosophical wisdom to be found in
Aristotle and Aquinas. The line from Descartes, Hobbes, Spinoza
and Locke to Hume, and from Hume to Kant and Hegel, produced
on the one hand the existentialism and phenomenology we find on
the continent, and the analytical, linguistic positivism on the Anglo-
American scene that is rampant in all of our western universities.
4
The errors and the befuddlement of these three centuries led to a
second crisis, a crisis which I have dated as beginning in 1930.
In the early part of this century, when I was studying philosophy,
there were still philosophers such as John Dewey, William James,
and George Santayana, on this side of the Atlantic; and on the
other side of the Atlantic, Bertrand Russell, Alfred North Whitehead,
and Bergson, who still wrote philosophy as if it were something
addressed to the mind of the common man. They wrote
philosophical books of a sort that were published generally for
people to read.
If you begin to look at the productions of philosophers either on
this continent, or in Europe, since 1930 to 1935, you see a remarkable change. Philosophers now write books for other philosophers to read, not for ordinary people to read. Philosophy has grown technical and specialized; it has removed itself from the world of general learning. It has become as specialized as its branches of mathematics or logic. It has retreated from the tradition it long had through the centuries."
In response to Question 2, here's a couple of issues. One of them, particularly galling for me, concerns moral values. They meant something in Aristotle's time. Nowadays they are mostly treated as being too relative and subjective to allow much more than opining. That's the anthesis of progress in philosophy.
Here's another issue about which Adler says:
"The second mistake is that of failing to distinguish between two
distinct realms of thought, perceptual thought on the one hand, and conceptual thought on the other. This is accompanied by an even more egregious mistake, that of denying that there is even such a distinction, thereby reducing all thought to the level of sense perception and imagination. This mistake leads to the denial of any distinction between the human mind with its conceptual powers and the mind of brute animals, with nothing but perceptual powers."