The past is never dead. It's not even past.
Optimists tend to interpret their troubles as transient, controllable, and specific to one situation. Pessimists, on the other hand, believe that their troubles last forever, undermine everything they do, and are uncontrollable.
The greatest gift you can give yourself is self-love.
过去的知识留在我们身边,激励我们追求新的更好的事物。