Thomas Jefferson got a lot of things right, including what was to be written on his tombstone. He left clear instructions as to how it should be constructed, but he also left very explicit directions as to what was to be written. He said:
"...on the faces of the Obelisk the following inscription, & not a word more:
Here was buried Thomas Jefferson Author of the Declaration of American Independence of the Statute of Virginia for religious freedom Father of the University of Virginia
"because by these, as testimonials that I have lived, I wish most to be remembered."
This from a man who did much more than these three things. Yet, he kept it simple, choosing his best achievements to be carved for all time (fun fact: the original tombstone is actually in Missouri, not at Montecello).
The question then, is this: if you were known for three things, what would they be? You have to pick three achievements or identities to be known by, to be etched in stone forever. What are they?
I'll go first in the comments.