Original sentence: Especially since the mid-20th-century European crisis, some thinkers argued the importance of looking at nature from a broad philosophical perspective, rather than what they considered a narrowly positivist approach relying implicitly on a hidden, unexamined philosophy
Edited sentence: Especially since the mid-20th-century European crisis, more philosophically alert thinkers have recognized the importance of looking at nature from a broader, philosophical perspective rather than the narrow, positivist approach that relies implicitly on a hidden, unexamined philosophy