These are the words of Viktor Frankl and it is a question he used to ask his patients who came to se him who were suffering from a multitude of torment and from their answers he would find their reason for living 
And Viktor Frankl was well qualified to ask that question as a therapist because he had survived the holocaust as a long term prisoner in Nazi concentration camps where his existence as a human being was stripped bare and where he also lost his father, mother, brother and wife to the camps or the gas chambers. 
He believed that our ultimate human freedom was the ability to choose one’s attitude in any given set of circumstances. 

He wrote a book called ‘Man’s Search for Meaning’ and I would highly recommend that you read it.
I hope the helps you.

Ver todos los episodios