self-actualize

(sĕlf'ăk'chū-ə-līz')
intr.v., -ized, -iz·ing, -iz·es.
To develop or achieve one's full potential.

self-actualization self'-ac'tu·al·i·za'tion (-ə-lĭ-zā'shən) n.
self-actualizer self'-ac'tu·al·iz'er n.

Quotes:

"What a man can be, he must be. This need we call self-actualization." - Abraham H. Maslow