Man is not worried by real problems so much as by his imagined anxieties about real problems
If anyone is unhappy, remember that his unhappiness is his own fault... Nothing else is the cause of anxiety or loss of tranquility except our own opinion.
No one who is in a state of fear or sorrow or tension is free, but whosoever is delivered from sorrows or fears or anxieties is at the same time delivered from servitude.
