I have one piece of advice for aspiring Sith Lords, choose your apprentices wisely.
STAR WARS: DARTH PLAGUEIS mini-excerpt #1 (ES):
"For the past five hundred years, the Sith of the Bane line had eschewed selecting children as apprentices, finding it more advantageous to discover beings who had already been hardened or scarred by life.
Plagueis, though, had been an exception."
SOURCE: Star Wars Books on Facebook