The study of life is the study of endless possibilities.
Success is measured not just by profit, but by the positive impact we leave behind.
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.
Though the Chinese should adore APL, it's FORTRAN they put their money on.