Doublethink means the power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them.
The most effective economic organizations are those that are able to combine the efficiency of large-scale operations with the flexibility and innovation of small-scale ones.
Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.