The Means Justify the Means

Do "ends" justify "means"?

Or, do "means" justify "ends"?

Or, is it just all "means" and no "ends", because and "end" is just a place where the mind stops to rest and not think for a while, before moving on?

Does this mean that "means" are just "ends" in themselves?

After all, if one employs "means" to achieve a purported "end", but then one's efforts are derailed (one dies, for example), then all one has as a legacy are the "means" that one has employed.