The biggest obstacle was mixing abortion with overpopulation. These are two things that have nothing to do with each other.
The sea is the universal sewer.
The awareness of our environment came progressively in all countries with different outlets.
No sooner does man discover intelligence than he tries to involve it in his own stupidity.
I believe that national sovereignties will shrink in the face of universal interdependence.
It is certain that the study of human psychology, if it were undertaken exclusively in prisons, would also lead to misrepresentation and absurd generalizations.