What English poet said as the road loose

The quote you are thinking of is actually: "Two roads diverged in a yellow wood, And sorry I could not travel both And be one traveler, long I stood"

This is from the poem "The Road Not Taken" by Robert Frost.

It's a very famous poem, often misinterpreted as being about choosing the less traveled path, when it's actually more about accepting the consequences of the path we choose, no matter how difficult.