because if you can’t kill then you are always subject to those who can, and nothing and no one will ever save you.
Knowledge is just opinion that you trust enough to act upon.
A character is what he does, yes - but even more, a character is what he means to do.
History is an omlette. THe eggs are already broken.
Oh, I'll live Ender's life, too. It's so much more interesting than my own." ~Val
Personal affection is a luxury you can have only after all your enemies are eliminated. Until then, everyone you love is a hostage, sapping your courage and corrupting your judgment.