Steam Packet Company bosses picked the name to reflect its Manx heritage - in manx mythology Manannan is god of the sea and protector of the Isle of Man.

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The challenge is this: God didn't create psychiatric disorders when he was naming the fish of the sea and the creatures of the land.

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For there is none worthy of the name but God, whom heaven, earth, and sea obey.

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Should a bottle of memory pills appear on your nightstand one day, a heap of credit will go to Tully and Kandel, with an assist from two of God's lowliest creatures: the fruit fly and the sea slug.

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