你放弃的那一刻就是你失败的那一刻。

Paths are made by walking.

I sent my Soul through the Invisible, Some letter of that After-life to spell: And by and by my Soul return'd to me, And answer'd "I Myself am Heav'n and Hell."

人工智能中逻辑系统的研究不仅仅是形式化，更是理解推理的本质。