"They would not find me changed from him they knew - only more sure of all I thought was true"

This quote by Robert Frost speaks to the concept of personal growth and advancement. It recommends that although the speaker may have changed from the individual that others understood, they are still the same individual at their core. The speaker is more sure of the beliefs and values that they held before, and has actually ended up being more positive in their convictions. This could be translated as an indication of maturity, as the speaker has actually made the effort to review their worths and has actually become more sure of them. It could also be seen as an indication of strength, as the speaker has actually not allowed external impacts to sway their beliefs. This quote speaks with the idea that personal development does not need to mean a total change, however rather a deepening of the worths and beliefs that one currently holds.