I think [Karl] Marx, Pope John XXIII or Rosa Luxemburg [had achieved the mode of existence].But it would be useless to look at a list of illustrious names.

Whether...a change from the supremacy of natural science to a new social science will take place...depends on one factor: how many brilliant, learned, disciplined, and caring men and women are attracted by the new challenge.

I love in you everybody, I love through you the world, I love in you also myself.

Man's main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.

The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.

The most important influence on a child is the character of its parents, rather than this or that single event.

People do not see that the main question is not : "Am I loved?" which is to a large extent the question : "Am I approved of? Am I protected? Am I admired?" The main question is: "Can I love?