—— 请按键盘 空白键 开始游戏 ——

I feel like killing everybody every time I go to the arena.
Data abstraction is the reduction of a particular body of data to a simplified representation of the whole.
The market is a great teacher, but it charges a high tuition.
"In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs."