Immature love says: 'I love you because I need you.' Mature love says 'I need you because I love you.'

I believe that love is the main key to open the doors to the "growth" of man. Love and union with someone or something outside of oneself, union that allows one to put oneself into relationship with others, to feel one with others, without limiting the sense of integrity and independence. Love is a productive orientation for which it is essential that there be present at the same time: concern, responsibility, and respect for and knowledge of the object of the union.

I feel worried, deeply worried, only about one thing - the possibility that we fall... that we cannot avoid an atomic war.

I believe that one can and must hope for a sane society that furthers man's capacity to love his fellow men, to work and create, to develop his reason and his objectivity of a sense of himself that is based on the experience of his productive energy. I believe that one can and must hope for the collective regaining of a mental health that is characterized by the capacity to love and to create.

In the first World War British propaganda had to invent the stories of German soldiers bayoneting Belgian babies, because there were too few real atrocities to feed the hatred against the enemy.

We forget that, although freedom of speech constitutes an important victory in the battle against old restraints, modern man is in a position where much of what "he" thinks and says are the things that everybody else thinks and says; that he has not acquired the ability to think originally - that is, for himself - which alone gives meaning to his claim that nobody can interfere with the expression of his thoughts.

Happiness is a man's greatest achievement; it is the response of his total personality to a productive orientation toward himself and the world outside.