science

Robert Heinlein, I Will Fear No Evil

"Elderly billionaire Johann Sebastian Bach Smith is being kept alive through medical support and decides to have his brain transplanted into a new body. He advertises an offer of a million dollars for the donation of a body from a brain-dead patient. Smith omits to place any restriction on the sex of the donor, so when his beautiful young female secretary, Eunice Branca, is killed, her body is used—without his knowledge and to the distress of some of those around him."

Reminds me of the guy that got a heart transplant and took up smoking like the original owner of the heart and started dating the original owners ex.

I'd read that novel.

Old man hell bent on world domination, but really wants Johnny in math class to ask him to the dance on Friday.

One of Iain M. Banks' Culture novels has an exceptionally old character who is so exceptionally old that he's had to turn most of his body into memory storage (sounds weird if you think in terms of computers) to keep remembering things. He stores his sexy memories in his balls.