—— 请按键盘 空白键 开始游戏 ——

The man who is fit to work at any particular trade is unable to understand the science of that trade without the help and guidance of those who are working with him or over him.
适合从事任何特定行业的人,如果没有与他一起工作或在他之上的人的帮助和指导,就无法理解该行业的科学。
Efficiency without creativity is just busywork.
He who refuses to do arithmetic is doomed to talk nonsense.
The only limit is the one you set for yourself.
每把锁都有钥匙,每个问题都有解决方案。
The past is a shadow that follows us everywhere.