Don't get the wrong idea. I wasn't asked to buy anything... a negotiation. Getting what's in your interest is the goal of negotiations. But defeating your opponent and temporarily gaining what you want will always come back to bite you in the long term. What's best for you is giving both parties something in their interest. There isn't just one answer, for one thing. We aren't god. We'll never know what was right - and what was the right answer - for our whole lives. But, even if we don't know, we just have to keep looking.
Mankind. You are currently attempting to decide as soon as possible whether I am friend or foe. But in all events, there is no such thing as a 100% probability. You must continue to think: am I a foe, or a friend? That is right. To constantly think... is the only right answer in the world.
I study too, you know. How could I teach anyone if I didn't grow and learn day by day. Now let's get rid of this dangerous cloth. Experiencing my Absolute Defense Form over summer vacation taught me yet another skill: compressing not my whole body, but a portion of my tentacles to release a burst of energy. Remember this Itona, I say assassination is education. The assassination classrooms teacher will get stronger every time he teaches!
So, what'll it be? If you come to help, I'll shoot you before you can save me. If you just let me die, your life as a teacher is over. Man! It's all flashing before my eyes! ... Korosensei! I'll kill you with my own two hands! Now, which death do you choose?
As you go through life, the might current of society is bound to get in your way and there will certainly be times that things don't go as you'd hoped. When this happens, don't look to society for a cause. Do not renounce society. Frankly, you'd be wasting your time. Instead just say, "That's life!" and muddle your way through with frustration. Once you're past it, consider: If society's swift current is tossing you around, how should you be swimming there in it's midst. You should have learned how, here in the E class, in this assassination classroom. You don't always have to stand and face it head-on. You can run and you can hide. If it's not against the rules, you can try a sneak attack. You can use unconventional weapons. Stay determined - not impatient nor discouraged - and with repeated trial and error, you're bound to reach a splendid outcome eventually.
To get what you want, you put up with something, make an effort, learn a skill, and inspire yourself. Is that how it is with Hinazuki too? Right now... I can tell she's enduring something. Just the opposite of me, she is pretending to be indifferent. She pretends to feel nothing, but a 10 year old girl isn't that strong.