Keirsey: Idealists [NFs], as a temperament, are passionately concerned with personal growth and development. Idealists strive to discover who they are and how they can become their best possible self -- always this quest for self-knowledge and self-improvement drives their imagination. And they want to help others make the journey. Idealists are naturally drawn to working with people, and whether in education or counseling, in social services or personnel work, in journalism or the ministry, they are gifted at helping others find their way in life, often inspiring them to grow as individuals and to fulfill their potentials.
Berens: [NFs] core needs are for the meaning and significance that come from having a sense of purpose and working toward some greater good. They need to have a sense of unique identity. They value unity, self-actualization, and authenticity. People of this temperament prefer cooperative interactions with a focus on ethics and morality. They tend to trust their intuition and impressions first and then seek to find the logic and the data to support them. Given their need for empathic relationships, they learn more easily when they can relate to the instructor and the group.