Carl Rogers was a major figure in humanistic psychology. He believed that humans have an innate tendency towards growth and self-actualization if provided an environment of unconditional positive regard. Rogers developed person-centered therapy which aims to provide clients with empathy, genuineness and warmth to help them move towards congruence between their real, perceived and ideal selves. He saw the fully functioning person as open, trusting, flexible and able to live fully in each moment. However, critics argue that Rogers' theory is too optimistic about human nature and risks promoting selfishness.