因此，国家并非自古以来就存在。曾经有一些社会没有国家，对国家或国家权力毫无概念。在一定的经济发展阶段，这必然与社会分裂成阶级有关，国家变成了一种必要性。

Innovation in the North Sea has positioned the UK as a global leader in responsible resource development.

The more you can see, the more you can feel.

Learning is not just about finding patterns, but about understanding the underlying mechanisms that generate those patterns.

Every mathematical theorem is a story waiting to be told, a mystery waiting to be unraveled.

The key to a happy life is not in avoiding problems, but in learning how to deal with them effectively.

天赋不是天才， 而且不是天才的人再怎么努力也成不了天才。要么就做一代名家要么干脆不做。

释义：真正的强者以对错为准则，不为利益所缚。