Carl Ransom Rogers

1902-1987, American Psychotherapist

Acceptance
The curious paradox is that when I accept myself just as I am, then I can change.
Actualization / Fulfillment
The mainspring of creativity appears to be the same tendency which we discover so deeply as the curative force in psychotherapy – man's tendency to actualize himself, to become his potentialties . By this I mean the directional trend which is evident in all organic and human life – the urge to expand, extend, develop, mature – the tendency to express and activate all the capacities of the organism, or the self.
On Becoming a Person