I who have gone further than anybody along the path that leads to immortality.
At the same age as you are now, give or take a few months, Tom Riddle was doing all he could to find out how to make himself immortal.
Why couldn’t he make a Sorcerer’s Stone, or steal one, if he was so interested in immortality?
He was already im-mortal, you see … or as close to immortal as any man can be.
In spite of all the temptation you have endured, all the suffering, you remain pure of heart, just as pure as you were at the age of eleven, when you stared into a mir-ror that reflected your heart’s desire, and it showed you only the way to thwart Lord Voldemort, and not immortality or riches.
But there are several reasons why, I think, a Sorcerer’s Stone would appeal less than Horcruxes to Lord Voldemort, "While the Elixir of Life does indeed extend life, it must lie drunk regularly, for all eternity, if the drinker is to maintain the immortality.
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Zeus and the other gods were supposed to be immortal.