"I study too, you know. How could I teach…" — Korosensei Quote

""Every experience is a tool to clear your path." It was none other than those students who taught me that."

— Karasuma Tadaomi · Assassination Classroom 2nd Season

"The past you've lost will never come back. I myself have made so many mistakes... But we can learn from the past so we don't repeat it."

— Korosensei · Assassination Classroom 2nd Season

"Take advantage of what you have, while you have it."

— Korosensei · Assassination Classroom 2nd Season

"Well I do have abilities you haven't yet been given, just like not everyones has the strengths you do."

— Asano Gakuho · Assassination Classroom 2nd Season

"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."

— Korosensei · Assassination Classroom 2nd Season

"Fun times are bound to end."

— Korosensei · Assassination Classroom 2nd Season