世界上充满了隐藏的联系。

Civilization will not last, freedom will not survive, peace will not be kept, unless a very large majority of the people unite to defend them.

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。

The key to successful investing is to have a clear understanding of the market, the risks involved, a disciplined approach, a long-term perspective, a strong understanding of the fundamentals, and a clear understanding of the risks and rewards.