A man's concern, even his despair, over the worthwhileness of life is an existential distress but by no means a mental disease.
Viktor E. FranklHappiness cannot be attained by wanting to be happy - it must come as the unintended consequence of working for a goal greater than oneself.
Viktor E. FranklIf architects want to strengthen a decrepit arch, they increase the load which is laid upon it, for thereby the parts are joined more firmly together. So if therapists wish to foster their patients' mental health, they should not be afraid to increase that load through a reorientation toward the meaning of one's life.
Viktor E. Frankl