25 Best Dr. Stone Quotes — Senku, Chrome & Tsukasa on Science, Civilization & Exhilaration
Riichiro Inagaki and Boichi's Dr. Stone asks a gloriously nerdy question: if all of humanity were turned to stone for 3,700 years and only a few revived, how would you rebuild civilization from zero? The answer, according to high-school science prodigy Senku Ishigami, is with glee — you get excited about sulfur, excited about electricity, excited about cotton candy, and drag humanity back from the stone age one joyful chemistry lesson at a time.
Senku's catchphrase "sosoru ze, kore wa" — roughly "this is getting me fired up" or "get excited!" — captures the soul of the series. Where other shonen push raw strength, Dr. Stone pushes curiosity as the ultimate power. Below are 25 of the series' best quotes, grouped by character, each paired with the context that makes Senku's stone-age rebuild so addictive.
Senku Ishigami — Ten Billion Percent
"Sosoru ze — kore wa! This is getting me fired up!"
— Senku Ishigami, Dr. Stone (throughout)
Senku's defining catchphrase. Whether he is extracting sulfuric acid or building a smartphone from scratch, every scientific challenge thrills him. The series' joy begins here.
"I'm going to save every single one of the seven billion people on this planet — with science."
— Senku Ishigami, Dr. Stone (Chapter 1)
"Science is the accumulation of every small 'why' humans have asked for two million years."
— Senku Ishigami, Dr. Stone (Chapter 12)
"Ten billion percent — we will make it work."
— Senku Ishigami, Dr. Stone (Chapter 6)
Senku's signature "jippaasento" (ten billion percent) replaces ordinary shonen confidence with a scientist's maximal overstatement. He isn't boasting — he's ruling out failure as a statistical outlier.
"Two million years of human progress. I'm not going to let it be forgotten just because everyone turned to stone."
— Senku Ishigami, Dr. Stone (Chapter 3)
"There's no such thing as impossible in science — only things we haven't figured out yet."
— Senku Ishigami, Dr. Stone (Chapter 24)
"Cotton candy is the most important technology of the stone age. Morale matters."
— Senku Ishigami, Dr. Stone (Chapter 19)
"I am a scientist. Saving the world and my friends — that is just the job."
— Senku Ishigami, Dr. Stone (Chapter 30)
"Exhilarating. Every single experiment — exhilarating."
— Senku Ishigami, Dr. Stone (Chapter 45)
Chrome — The Stone-Age Sorcerer
"I don't have knowledge. I just want to understand — why the world works the way it does."
— Chrome, Dr. Stone (Chapter 14)
Chrome is Senku's perfect counterpart: a stone-age kid with no formal science, only pure curiosity. He becomes one of the greatest arguments the manga makes — that the scientific temperament doesn't require education, only wonder.
"My collection of rocks and shells — Senku called it a 'laboratory.' That was the moment I became a scientist."
— Chrome, Dr. Stone (Chapter 17)
"Even a sorcerer can become a scientist. It is only a matter of asking the right questions."
— Chrome, Dr. Stone (Chapter 22)
"We will invent cell phones in the stone age. That alone is worth living for."
— Chrome, Dr. Stone (Chapter 55)
Tsukasa Shishio — The Strongest High-Schooler
"Only the young, the pure — those untainted by the old world. That is who deserves this new earth."
— Tsukasa Shishio, Dr. Stone (Chapter 7)
Tsukasa is Senku's ideological opposite — he sees the stone-age reset as a chance to build a better civilization free of adult corruption. His brute strength and clarity of vision make him one of shonen's more philosophically interesting antagonists.
"Science brings convenience, but also war. I will not allow it to return."
— Tsukasa Shishio, Dr. Stone (Chapter 10)
"Senku, you saved my sister. For that, I owe you more than an enemy's life."
— Tsukasa Shishio, Dr. Stone (Chapter 82)
"My fist protects only what I believe in. Science must prove itself worthy."
— Tsukasa Shishio, Dr. Stone (Chapter 35)
The Kingdom of Science — Teamwork & Wonder
"Science is not the work of one genius. It is every villager, every cook, every blacksmith, pushing in the same direction."
— Senku Ishigami, Dr. Stone (Chapter 28)
"Kohaku protects me, Chrome researches with me, Kaseki builds — together we are the Kingdom of Science."
— Senku Ishigami, Dr. Stone (Chapter 33)
"If there is a path back — I will walk it with you, ten billion percent."
— Gen Asagiri, Dr. Stone (Chapter 40)
"Kohaku is not a princess. Kohaku is a warrior who strikes first and questions later."
— Kohaku, Dr. Stone (Chapter 21)
"The path of science does not branch. Even if we die, someone will pick it up and keep walking."
— Byakuya Ishigami, Dr. Stone (Chapter 44)
The message Senku's father left behind on a space station before the stone age descended. Dr. Stone is ultimately about the handoff of knowledge across generations — a theme as old as civilization itself.
"Every discovery belongs to everyone. Science has no king."
— Senku Ishigami, Dr. Stone (Chapter 60)
"The stars were set long before we were born. But we can still reach them."
— Senku Ishigami, Dr. Stone (Final arc)
Frequently Asked Questions about Dr. Stone Quotes
What is Senku's catchphrase?
"Sosoru ze — kore wa!" — roughly "this is getting me fired up." It is repeated throughout the series whenever Senku faces a scientific challenge, from extracting sulfuric acid to building a smartphone from scratch. The phrase captures the soul of the manga: curiosity, not strength, as the ultimate power.
What does "ten billion percent" mean in Dr. Stone?
It is Senku's signature overstatement, introduced in Chapter 6: "Ten billion percent — we will make it work." Rather than ordinary shonen confidence, the phrase is a scientist's maximal claim — Senku is not boasting, he is ruling out failure as a statistical outlier. Even Gen Asagiri later adopts the phrase by Chapter 40.
What is Tsukasa's philosophy?
Tsukasa Shishio sees the stone-age reset as a chance to build a better civilization free of adult corruption: "Only the young, the pure — those untainted by the old world. That is who deserves this new earth" (Chapter 7). His objection to science is in Chapter 10: "Science brings convenience, but also war. I will not allow it to return."
What is the Kingdom of Science?
Senku's collective project of rebuilding civilization from zero. As he puts it in Chapter 33: "Kohaku protects me, Chrome researches with me, Kaseki builds — together we are the Kingdom of Science." It is a deliberate inversion of shonen lone-hero tropes: science, in Inagaki and Boichi's manga, is never one genius but everyone pushing together (Chapter 28).
Why does Chrome become a scientist?
Chrome is the manga's argument that the scientific temperament does not require formal education — only wonder. He says in Chapter 14: "I don't have knowledge. I just want to understand — why the world works the way it does." The moment Senku names his rock collection a "laboratory" (Chapter 17) is the moment Chrome becomes a scientist.
Related Series
If Dr. Stone's science-shonen thrill hooks you, these collections continue the theme of ambition and mastery:
- Fullmetal Alchemist Quotes — alchemy as the other side of science
- Hunter x Hunter Quotes — Togashi's rigorous power systems
- One Piece Quotes — crew-built dreams, another Kingdom-of-Science energy
- My Hero Academia Quotes — Plus Ultra, also about exceeding limits
- Anime Philosophy Quotes — deeper cross-series meditations
Browse every series on our Anime & Manga Quotes hub.