世界的美有两面，一面是欢笑，一面是痛苦，将心割裂。

Be a pro. Back up your back up. Have at least one physical backup and one backup in the cloud. Have more than one of each. How much would you pay to retrieve all your data， photos， notes， if you lost them？ Backups are cheap compared to regrets.

"He who has a why to live can bear almost any how."

The truth is that life is delicious, horrible, charming, frightful, sweet, bitter, and that is everything.

Those who keep learning will keep rising in life.

写作是一种自由的形式，在这里我们可以表达我们最深的思想。