He was also considered a strict empiricist who threw out the idea that knowledge could be obtained by means other than descriptions of facts those that believed this thought that revelation or mysticism could not be sources for obtaining truth.
He was also considered a strict empiricist. Knowledge could be obtained by means other than descriptions of facts those. Revelation or mysticism could not be sources for obtaining truth. This was what this believed. This thought this. This strict empiricist threw out the idea this.