Humankind has speculated in various ways about the moral standards of higher civilizations.
Many think that higher civilizations, like primitive beasts, emphasize reproduction, crave the plunder of more resources, and love expanding their territory in hope of ruling the universe.
Some believe that civilizations capable of interstellar travel have likely overcome internal conflicts and achieved unity, opposing meaningless resource wastage, and would approach humanity with more rational and peaceful attitudes.
Others think that the biological structure and sensory systems of higher civilizations might differ greatly from humans.
In their world, pain might bring joy, while happiness would cause sadness, thus their moral notions might be vastly different from humans'.
However, no matter the speculation, in humans' minds, higher civilizations navigating the sea of stars are definitely not foolish, nor could they be naive.
