Tsukasa demands that Senku abandons science, but there’s no way he can do that. Tsukasa is left with no choice but to kill him.
When we were removing the petrification 
on your foot, didn't Senku say...
...عندما كنا نزيل التحجير من على قدمك، قال سينكو
Damals, als wir die Versteinerung
in deinem Fuß lösten,
Cuando retiramos
la petrificación de tu pie,
¿No dijo cuando retiramos
Quand on s’occupait
de tes orteils encore pétrifiés,
In effetti...
O Senku não disse que quando removêssemos
a petrificação no seu pé,
Точно, когда мы снимали окаменение
с твоей ноги,