"Every form of happiness if one, every desire is driven by the same motor--by our love for a single value, for the highest potentiality of our own existence--and every achievement is an expression of it."
"An attempt to achieve the good by force is like an attempt to provide a man with a picture gallery at the price of cutting out his eyes."
"Contrary to the ecologists, nature does not stand still and does not maintain the kind of equilibrium that guarantees the survival of any particular species - least of all the survival of her greatest and most fragile product: man."
"Why do they always teach us that it's easy and evil to do what we want and that we need discipline to restrain ourselves? It's the hardest thing in the world--to do what we want. And it takes the greatest kind of courage. I mean, what we really want."
"Whatever their future, at the dawn of their lives, men seek a noble vision of man's nature and of life's potential."
"Man is an end in himself."