But does Man have any 'right' to spread through the universe? Man is what he is, a wild animal with the will to survive, and (so far) the ability, against all competition. Unless one accepts that, anything one says about morals, war, politics, you name it, is nonsense. Correct morals arise from knowing what man is, not what do-gooders and well-meaning old Aunt Nellies would like him to be. The Universe will let us know - later - whether or not Man has any "right" to expand through it.
Robert A. HeinleinLike every living thing its prime characteristic is a blind, unreasoned instinct to survive.
Robert A. HeinleinThere was one field in which man was unsurpassed; he showed unlimited ingenuity in devising bigger and more efficient ways to kill off, enslave, harass, and in all ways make an unbearable nuisance of himself to himself.
Robert A. HeinleinIt is a bad sign when the people of a country stop identifying themselves with the country and start identifying with a group. A racial group. Or a religion. Or a language. Anything, as long as it isn't the whole population.
Robert A. Heinlein