He who has a why to live for can bear almost any how .
Everything can be taken from a man but one thing : the last of the human freedoms - to choose one's attitude in any given set of circumstances, to choose one's own way.
3. A Human dies when he can't think about his future.
No one has the right to do wrong, not even if wrong has been done to him.
We can discover meaning of life by doing good deed, by experiencing something or encountering someone, by attitude we take toward unavoidable suffering.
Suffering ceases to be suffering at the moment it finds a meaning, such as meaning of sacrifice.
We should avoid - "existential vacuum, feeling of emptiness and meaningless" .
Pleasure must remain a side effect or by-product, and is destroyed to the degree to which it is made a goal itself .