Read these lines from Robert Frost’s "The Road Not Taken.”Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back.

The speaker says he hopes to take the first road another day, but he doubts he will ever return. The phrase “way leads on to way” suggests that one choice leads to others, making it difficult to revisit the original decision. This supports the idea that we cannot always know what might have happened if we had chosen differently; “Because a choice will take us in certain directions, it is not always possible to know what might have been” is the best answer.

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