Hatred is settled anger.
I have two ideas for novels at the moment neither of them all that conventional but I'm not ready to choose between them yet let alone settle down to the process of writing.
Unconditional war can no longer lead to unconditional victory. It can no longer serve to settle disputes... can no longer be of concern to great powers alone.
If it's true that our species is alone in the universe then I'd have to say the universe aimed rather low and settled for very little.
There are many teachers who could ruin you. Before you know it you could be a pale copy of this teacher or that teacher. You have to evolve on your own.