how far
Adverb
Meaning
Used literally: what distance. (This entry is a translation hub.)
To what extent.
Source: en.wiktionary.orgSynonyms
Examples
Only those who will risk going too far can possibly find out how far one can go.
Tact in audacity is knowing how far you can go without going too far.
A modern democracy is a tyranny whose borders are undefined; one discovers how far one can go only by traveling in a straight line until one is stopped.
No matter how far you have gone on a wrong road, turn back.
The man being carried does not realize how far away the town really is.
He who is carried on another's back does not appreciate how far off the town is.