[W]e must remember that the problem of the environment is complex; one might compare it to a multifaceted prism. Creatures differ from one another and can be protected, or endangered, in different ways, as we know from daily experience.One such attack comes from laws or proposals which, in the name of fighting discrimination, strike at the biological basis of the difference between the sexes. I am thinking, for example, of certain countries in Europe or North and South America.Saint Columban stated that: "If you take away freedom, you take away dignity" (Ep. 4 ad Attela, in S. Columbani Opera, Dublin, 1957, p. 34). Yet freedom cannot be absolute, since man is not himself God, but the image of God, God’s creation. For man, the path to be taken cannot be determined by caprice or willfulness, but must rather correspond to the structure willed by the Creator.
Benedict XVI
January 11, 2010