lodestar

• n. 北极星；目标；指导原则（等于loadstar）

1. guiding star; a star that is used as a reference point in navigation of astronomy

2. something that serves as a model or guide

lode,引导，star,星。引申词义北极星，指导原则。

1. A mistress lives perhaps too much in the present, but this immediacy is a lodestar.

一个情人则可能过分注重此情此景,活在当下就是她的指导原则.

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lodestar (n.)

late 14c. (late 13c. as a surname), an old name for the pole star (compare Old Norse leiðarstjarna) as the star that "leads the way" in navigation; from lode (n.) + star (n.). Figurative use from late 14c.