In lieu of a graduation address…
… from xkcd:
As we avoid looking too closely at the faces of our watches, we might recall that it was on this date in 1921 at the White House that President Warren G. Harding presented Marie Curie with a gram of radium (worth $100,000 at the time). Curie died in 1934 of aplastic anemia contracted from exposure to radiation. Her laboratory is preserved at the Musée Curie. But because of their levels of radioactivity, her papers are considered too dangerous to handle, and are kept in lead-lined boxes; those who wish to consult them must wear protective clothing.
Curie, with Harding at the White House (source)