"More than half the world is hungry and the environment of the world is
deteriorating rapidly because of over-population. Any action which impedes
efforts to halt the world population perpetuates the misery in which millions
now live and promotes death by starvation of millions this year and many more
millions in the next few decades.
It has been stated by Roman Catholics that the Pope is not evil, but
simply unenlightened, and we must agree. But, whatever the motives, the evil
consequences of his encyclical are manifest...
(conclusion) The world must quickly come to realize that Pope Paul VI has
sanctioned the deaths of countless numbers of human beings with his misguided
and immoral encyclical. The fact that this incredible document was put forth
in the name of a religious figure whose teachings embodies the highest respect
for the value of human dignity and life should serve to make the situation
even more repugnant to mankind."
[American Association for the Advancement of Science,
Signed by about 2000 Scientists, Dallas, 1968,
on Pope Paul VI's "Humanae Vitae" encyclical]