可持续性不是一种选择，而是我们对后代的责任。

The world is a comedy to the wise, a tragedy to the foolish.

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.

意志不坚强的，智慧一定不高；说话不讲信用的，行动也不会果敢；拥有财富而不肯分给人的，不值得和他交友；守道不坚定，阅历事物不广博，辨别是非不清楚的，也不值得和他交游。