"I'm going to use the power of science to save every single person."
— Senku Ishigami declaring his goal to save everyone.
"10 billion percent!"
— Senku's Character Catchphrase.
"Just look, Tsukasa. No matter if you kill me or anyone else, science will revive itself. With these hairless apes, even a crazy idiot who endlessly tests things can surely revive it again!"
— Senku commenting on humanity's persistence.
"This new world should be built only by the young. There's no need for us to rebuild the same world that stood before. All we need to do is erase Senku from this world, and science vanishes along with him. We shall purify this stained soiled humanity. So that we may step into a new world!"
— Tsukasa discussing his motive.
