—— 请按键盘 空白键 开始游戏 ——

Certification standards are more than paperwork—they're our promise to the planet.
Failure is interesting — it’s part of making progress. You never learn from success, but you do learn from failure.
The young do not know enough to be prudent, and therefore they attempt the impossible – and achieve it, generation after generation.
Your  biggest  competior is yourself.