Life is too short to waste time on negativity.
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.
当我们爱时，我们总是努力变得比现在更好。当我们努力变得更好时，周围的一切也会变得更好。
Behavior is determined by the current stimulus situation and past reinforcement history.
The future is not something to be predicted, but something to be achieved.
Music has made me understand that dreams are worth persisting.