“Once you go alien, you really do never go back.”
“Suddenly, I can see you weren’t bragging – once you go alien, you really do never go back.”
“Once you go bacterial, you never go back....”
“Once you go pack, you never go back.”
“Once you taste a little of the sweetness that life can be, there really is no going back.”
“You can never go back, really, there is only forward.”