My suggestions:
"The Road goes ever on and on 長路漫漫
Down from the door where it began. 始於門下
Now (How?) far ahead the Road has gone, 道遠何其
And I must follow, if I can, 歇力相隨
Pursuing it with eager feet, 追行不怠
Until it joins some larger way 至入康莊
Where many paths and errands meet. 途匯事集
And whither then? I cannot say." 何時莫言
"The Road goes ever on and on 長路漫漫
Down from the door where it began. 始於門下
Now (How?) far ahead the Road has gone, 道遠何其
And I must follow, if I can, 歇力相隨
Pursuing it with eager feet, 追行不怠
Until it joins some larger way 至入康莊
Where many paths and errands meet. 途匯事集
And whither then? I cannot say." 何時莫言