Not so. Sometimes immature and violent races will invade without cause. Because they believe conquest is honourable, or because they are greedy for the resources they believe you possess, or simply because they are envious and wish to tear you down out of spite.

The universe has more than its share of vile, brutal people and species. True, there are some good people as well, but they either get taken advantage of or they learn to defend themselves.

[Years have made Narvin very pessimistic about and suspicious of other people.]