General
Conan Edogawa, a detective! (Edogawa Konan, tantei sa!)
—One of Conan's catchphrases.
There is always only one truth! (真実はいつもひとつ！ Shinjitsu wa itsumo hitotsu!)
—One of Conan's catchphrases. Specific
After all, I'm the guy who's been breaking heart by making her wait an eternity... even though I'm always by her side.
—Talking to Haibara about Ran
Don't run away, Haibara. Don't look away from your fate.
—After rescuing Haibara from a suicidal situation.
Ah, if you want to know, I'll tell you... In the afterlife...
—Conan's response when Takagi asked who he really is.
Even if you're facing a bitter aspect of life, drugs and murder are foul without any excuse, deserves a red card for a loser.
—Talking to Ray Curtis in English
Ran, If we die, we die together...
—Movie 1, The Time-Bombed Skycraper
A detective who corners a culprit with their reasoning...and drives them to suicide in front of himself is no different than a murderer.
—Conan/Shinichi telling Heiji why letting the criminal commit suicide is wrong,Episode 78
Only one truth prevails!
—One of Conan's catchphrases, which appears at the end of every solved case in Case Closed.
Because I love you. I love you. In this world, more than anyone...
—Movie 4 Captured In Her Eyes
Words are like swords. If you use them the wrong way they'll turn into ugly weapons. Once those words leave your mouth, you'll never be able to take them back.
—Movie 15 Quarter of Silence, talking to the Detective Boys
If you're going to hide a leaf, hide it in a forest. When there's no forest, you can make one yourself.
—OVA 4, talking to Phillip
Detectives are also human, not God who knows everything.
—Talking to Ran
Culprit: I thought my crime is perfect. Just like my operations.
Conan (voiced as Kogoro): Crimes committed by humans can never be perfect.
—Episode 55
Ghosts are illusions created by fear.
