self-actualization; self-fulfillment; self-realization
自己実現への欲求が彼を動かした。
The desire for self-realization drove him.
仕事を通じた自己実現は多くの人が求めている。
Many people seek self-fulfillment through their work.
自己実現を果たすために挑戦を恐れてはならない。
Don't fear challenges if you want to achieve self-fulfillment.