(Requested by @ii-thiscat-ii, who wanted a breakdown of the quote from Roger on this page.)
Oh, this is a FUN one to break down. The first bit is pretty simple- これらは止めることのできないものだ/korera wa tomerukoto no dekinai mono da pretty straightforwardly means “These are things that cannot be stopped.”
Then there’s the three things he lists, which, in Japanese at least, all have pretty direct reference to events in the story. The first is 受け継がれる意志/uketsugareru ishi. Uketsugareru is ‘to be inherited’ and 意志/ishi is ‘will’- and that’s the same word as used when mentioning the Will of D (Dの意志/D no ishi).
Then the second item, 人の夢/hito no yume, means ‘the dreams of people’ or ‘people’s dreams,’ and is the exact same phrasing used by Blackbeard when he meets Luffy at Jaya and says 人の夢は終わらない/hito no yume wa owaranai (’people’s dreams are unending’).
The third thing is 時代のうねり/jidai no uneri. Jidai is ‘age’ or ‘era,’ and it shows up allll over the place in One Piece- the story is set in the 大海賊時代/daikaizoku jidai, the Great Pirate Age, and both Whitebeard and Blackbeard talk about it at Marineford. And uneri means like ‘meandering’ or ‘undulation.’ I like ‘ebb and flow’ as a translation of this word, actually, but I feel like here specifically something like ‘winding progress’ would be better, since it gives clearer vibes of forward movement/progress.
Next is 人が自由の答えを求める限り/hito ga jiyuu no kotae wo motomeru kagiri. Kagiri means ‘limit,’ and here is like ‘so long as/until…’ Motomeru here is ‘to wish for’ or ‘to seek,’ and jiyuu no kotae is like… “freedom’s answer/response”? It’s a bit weird in English so I think it’s probably fine to just translate that part as ‘freedom,’ but the inclusion of 答え/kotae (’answer’) in the Japanese does call forward a bit to something Dragon himself says later in this chapter, about the world awaiting their answer.
And then it ends with それらは決して止まらない/sorera wa kesshite tomaranai, which is… not translated well here. Tomaru is ‘to stop’ and kesshite is like ‘never/by no means,’ so it should be “These things will never stop.”
So altogether, from the top: “These are things that cannot be stopped: Inherited will. People’s dreams. The winding progression of the ages. So long as people seek (the answer/solution of) freedom, those things will never stop.”