I agree, of course. But don't be too harsh on Immanuel Kant, who had no knowledge of modern chemistry but was able to understand, that Aristotle was essentially wrong in his views about "natural places of light things up on the sky and heavy things down here on Earth".
People understood that Aristotle's understanding of natural place didn't work long before Kant. As early as the 1300s, Oresme laid out problems with this view. The work of Galileo and others made it clear that it didn't make sense. Newton removed any remaining doubts about this. And Newton died about when Kant was born. That Kant knew that Aristotle was wrong is no credit to Kant.
As to the chemistry matter, I'm not completely sure but I think that idea also was around before Kant. Robert Boyle wrote The Skeptical Chemist about 70 years before Kant was born...
This is our monthly thread for collecting these little gems and pearls of wisdom, rationality-related quotes you've seen recently, or had stored in your quotesfile for ages, and which might be handy to link to in one of our discussions.