"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

数学的本质在于它的自由。

沉默是那些看得太多的人的语言。

Business is like war—you need a strategy, but you also need to adapt when things go wrong.

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.

未经审视的生活不值得过。