Client-Centered Approach

With Carl Rogers the psyche was placed back in psychology. Previously it (Behaviorism) was becoming an overly manipulative, controlling science; now, w/ the advent of Third Force Psych (Humanistic) it added dignity, humaneness, to the science of psychology.

Therefore, Rogers was much a reaction in modern psych which saw man as a soulless object who must adapt to the environment - in deep denial of the very essence (in esse) which separates man from the rest of the animal kingdom.
 
However, many behavioristic principles (stimulus response [S-R], learning theory, operant conditioning) are certainly valid and useful, but optimally need to be tempered with a more holistic, integral approach & methodology... Ultimately, we are ontopsychosomatic entities or continuums - mind-body-spirit...

And anything which reduces or restrains man's essence becomes overly fatalistic & deterministic (external locus of control); reason or rationalism (intelligible world) per se must necessarily make a leap into existence (Being) in order that in posse (possibility) may develop & burgeon into in esse (Essence, Presence).

Rogers, like Maslow et al., brought this other vital dimension into focus, integrating Freudianism-Behaviorism orthodoxy w/ Third-and-Fourth Forces, making psychology a much more fully developed science, not a reductio ad absurdum, towards a finally more integrated perspective.