Naze yuku no ka?
Nani wo ou no ka? [bad word] [bad word] ga nai kokoro zashi. 
Kichi to [bad word] ka. Kyo to [bad word] no ka. 
Mimi wo togi sumasu - yaiba no koe yo.
Michiyuku ha kaze no [bad word] mama neko jarashi
Nasake Wo sutete fuminarasu
Iza michi wo yukeba miete [bad word] 
Onore no ashiato furimukuna 
Michi wo yukeba koete miseyo 
Onore ni makeji to waga michi yo 

Te wo kasuhodo himani arazu to 
Hitai wo nugue nijurasen 
Mae ni [bad word] [bad word] zenitate 
Koban wo tenisura mimi wo [bad word] 
Kamishimeta kiai to katsu no bushi no michi 
Hara ga hetyuteha tatakaenu 
Iza michi no nakaba [bad word] Onore wo [bad word] haji wo [bad word] 
Michi no nakaba saredo nakaba 
Onore ni jungite shin wo [bad word]   
 
Iza michi wo yukeba miete [bad word] 
Onore no ashiato furimukuna 
Michi wo yuke ba koete miseyo 
Onore ni makeji to waga michi yo  [bad word] saki ni [bad word] monoga 
Onozu to [bad word] ni [bad word] 
Michi wo yukeba koete miseyo 
Onore ni makeji to waga michi yo 

Translation:

Why are you going? What are you chasing?
strong will that will never waver.
In better or worse,
Sharpen your ears to the voice of the sword.
You have a taste for battle-cries, the path of a warrior
Throw away your pity and trample it flat.
Now, if you walk that path, will you see it?
Don't turn back your footsteps.
When I walk this path, I will try and go beyond it
My path that will not succumb to you.

And a bit more literal translation:

Why are (you) going? What are (you) pursuing?
will that will not waver, no matter what.
Will a good [bad word] out? Will a bad [bad word] out?
Sharpen your ears - the voice of the sword.
(You)'ve taken a taste to 'kiai'* and 'katsu'** of the way of the warrior.
Throw away pity and trample it flat
Now, if (you) walk the path, will (you) see it?
Don't turn back your footsteps.
If (you) walk the path, show (us) beyond it.
My path that will not succumb to you.