From Contact Report 1
27. Many frauds and charlatans claim to be in contact with human beings from other planets in your solar system and even to have flown with or in their beamships.
28. This is nothing but a lie, for most of the stars they mention and their planets are so desolate that human life cannot exist there.
29. Other planets, on the other hand, have long since ceased to support life or else they are in their first stages of development.
30. Other solar systems, however, harbor a number of various life forms, and not only human life.
31. The forms of life are diverse—human as well as animal.
32. Many faunal or even floral life forms have also reached highly advanced levels of existence.
33. So there are species that have acquired much knowledge and have freed themselves from their environment; they travel through space and also occasionally come to Earth.
34. Many of them are rather unpleasant creatures and live in a certain barbarism that frequently is nearly as bad as the terrestrials'.
35. One must be on one's guard from them because they often attack and destroy everything that gets in their way.
36. Often they have destroyed whole planets or forced their inhabitants into barbaric slavery.
37. This is one of our tasks:
38. To warn the people on Earth of these creatures.
39. Let the people know this because the time is approaching when a conflict with these degenerate human creatures becomes unavoidable.