Most fans agree that Senkū Ishigami is not only known for his brilliant plans and inventions but also his witty comebacks and phrases. In the world of Dr. Stone, Senkū's friends and enemies alike admire him for his genius, which gives him the ability to say and do things that motivate those around him.
Despite his hilarious bluntness and tendency to poke fun at those he cares for, Senkū seems to always know the right thing to say at the right time. There are many memorable Senkū quotes that have left viewers feeling equally giddy and inspired, and more are sure to follow in the upcoming second season.
10 "We Just Met, And She's Already In Love? In This State Of Emergency?"
It's no secret that Senkū isn't the romantic type. He makes it clear that he is a focused person with one goal in mind, which is to restore humanity. When Senkū happens to meet Kohaku for the first time she shows a liking to him in a way that portrays admiration and gratefulness.
She admits this to him after he rescues her from being trapped underneath a tree as a result of her violent encounter with Tsukasa Shishio. Senkū responds with his disinterest, leaving Kohaku annoyed by his assumption and sparking the beginning of their complex friendship.
9 "I'm Going To Colonize This Village With The Scientific Food That Is Ramen."
In their efforts to make antibiotics to heal Kohaku's sister, Ruri, Senkū and his new friends concluded that they needed more manpower to accomplish it. Specifically, the act of melting iron was particularly difficult for them as they didn't have the number of people needed to pump the furnace to reach a temperature hot enough.
Upon reaching a populated village, Senkū began scheming a way to bribe the villagers to help with the manual labor by using the unknown, delicious dish of ramen.
8 "We're Gonna Make Cellular Phones, Right Here In The Stone World."
With the threat of Tsukasa and his people closing in with their weapons and knowledge of technology, Senku and his new Kingdom of Science were left at a disadvantage. Senkū understood that the only way to gain back the advantage was to do the unexpected.
He started to think about the ways previous wars were won and he came to the realization that communication is key. He figured that to surprise his enemies, he must invent a way for his team to communicate with one another at a distance using cellphones.
7 "A Few More Months Or Years Is No Big Deal. We're Going To Build Our Kingdom Of Science."
After a long time of building the necessities for survival and discovering the formula for depetrification, Senkū and his friend, Taiju Oki, felt accomplished. However, Senkū is a very driven individual who strives to overcome each of his obstacles one after another without being troubled by the difficulties that come along with it.
Despite Taiju's anxiety and impatience, Senkū's perseverance driven by his motivation to restore humanity allows him to disregard things like time to achieve his future goal.
6 "I'm Going To Use The Power Of Science To Save Every Single Person."
Senkū's love for science and his faith in its ability served as the foundation for his hope that the people of the world would be saved.
Having the knowledge that every aspect of survival and the growth of civilization is based on science, he truly believed that he would be able to utilize it to restore life to everyone who was petrified. Senkū's trust in science and humanity motivated him to build up society and return to some form of normality.
5 "We're Finally Harnessing The Power Of Nature. We're Overcoming Manpower And Entering The Age Of Energy!"
The villagers' aid is essential to the success of most, if not all, of Senkū's plans. They have managed to impress him on several occasions, with the most significant time being when Chrome and Kaseki surprised him with their assembly of a waterwheel.
Without knowing, they invented the river-powered machine that ended the need for manual labor, in turn maximizing their levels of productivity and efficiency by tenfold. When Senkū saw this, he was ecstatic to realize the Kingdom of Science had a new form of automated power.
4 "Humanity Isn't Going Down That Easily. Two Million Years Of Human History Is Right Here Inside Me."
The pressure of having the fate of humanity in your hands would be too much to handle for most, but not for Senkū. He was completely aware of the stakes at hand but showed conviction because of the vast amount of information he held in his mind, despite the countless issues that presented themselves along the way.
When doubts arose within the Kingdom of Science, he remained firm in his belief that he could make a discovery or create an invention that would lead to a solution.
3 "I Would Have Been Screwed Without Your Science Gift. I'm Happy To Receive It, Thousands Of Years Later."
As a serious man of science, Senkū refrained from showing his emotions most of the time, especially around others. However, when Senkū found out about his fathers' involvement in the village's origin and Rin took him to visit the grave, he shed a tear of appreciation for his father's helping him achieve his goal so many years into the future.
He was moved by how much his father believed in him and his ability to continue the efforts of saving the world.
2 "10 Billion Percent."
Whether it comes to measuring the probability of a negative outcome or the success of a plan, Senkū is always sure to use his favorite number, 10 billion.
Unlike his other witty one-off phrases, this is one that he repeated throughout the series to ensure that those around him understood exactly how positive he was about whatever he was referencing. Confidence is something that Senkū has plenty of, especially when it comes to science— and he is clearly not afraid to show it.
1 "This Is Exhilarating."
Similar to his excessive use of the number 10 billion, Senkū shows his excitement in a very specific way. More commonly known among English dub viewers as, "Get Excited," this is Senkū's go-to catchphrase.
Ironically, after declaring that the Kingdom of Science should prepare for the Stone Wars, Senkū uttered it as the final line of season one. This quote is one that inspires his peers, intimidates his enemies, and excites Dr. Stone fans all the same.