【释义】经过多年努力也还不够，一旦毁坏却十分彻底。
Beauty is the only thing that can save us, but it is also the most fragile.
学习的速度决定成长的速度。
The good times of today, are the sad thoughts of tomorrow.
生活是老师，我是学生。
On progress: "If you're competitor-focused， you have to wait until there is a competitor doing something. Being customer-focused allows you to be more pioneering."