He experimented empirically in psychology, interesting himself in the processes of his own mind.
"George Du Maurier, the Satirist of the Victorians"
T. Martin Wood
The idea that they can be empirically marked out and investigated seems to imply this.
"John Dewey's logical theory"
Delton Thomas Howard
He takes the biological situation literally, as a fact empirically given, and to be accepted without criticism.
"John Dewey's logical theory"
Delton Thomas Howard