Complex sentence: Other 20th-century philosophers such as Gilbert Ryle and A.J. Ayer were critical of Husserl's concept of intentionality and his many layers of consciousness, Ryle insisting that perceiving is not a process and Ayer that describing one's knowledge is not to describe mental processes.
Split into simpler sentences: Other 20th-century philosophers such as Gilbert Ryle and A.J. Ayer were critical of Husserl's concept of intentionality and his many layers of consciousness. Ryle insisted that perceiving is not a process, and Ayer that describing one's knowledge is not to describe mental processes.