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.
所有没有杀掉我的就只会令我更顽强！
市场足够有效，以至于大多数投资者无法超越它。
The work is about presence and absence.