—— 请按键盘 空白键 开始游戏 ——

There are dark shadows on the earth, but its lights are stronger in the contrast.
The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.
The mind can be considered as a physical symbol system.