“Mentally healthy individuals should be in touch with their own identity and their own feelings; they should be oriented toward the future and over time they should be fruitfully invested in life. Their psyches should be integrated and provide them a resistance to stress. They should possess autonomy and recognize what suits their needs; they should perceive reality without distortion and yet possess empathy. They should be masters of their environment - able to work, to love, and to play, and to be efficient in problem-solving.”
―
George E. Vaillant,
Adaptation to Life