All three examples have an ideological ring to them. And interestingly they all refer to wrong thinking* (the first one is quite vague, but whatever is the foundation of modern thought must be wrong, as modern thought is wrong.)
By the way, I'd do the same if I was the editor. I'd also choose ideological examples - the thing is mine would refer to sound thinking.
*'Rational nature' is in the same category as a 'suicidal dougnut', and principles are outside nature, so to form or state a principle about nature someone must be able to operate outside nature, at least from time to time.
PS The first two examples are about Kant, it seems. (He meant a 'rational substance' rather than 'rational nature'; the use of 'nature' is confusing here)
Example Sentences
- On this basis he built up a philosophy which is usually regarded as the foundation of modern thought.
- The foundation of this principle is: rational nature exists as an end initself.
- The melting of ice-rich permafrost can destroy the physical foundation of everything above: tundra and forests, houses and roads.