Who said "The sea is cruel, but the land is crueler."?

This quote is attributed to Theon Greyjoy.

The sea is cruel, but the land is crueler. - Theon Greyjoy

"The sea is cruel, but the land is crueler."

Theon Greyjoy Nature

Character in A Clash of Kings

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"Better to be a living dog than a dead lion."

"What is dead may never die"

"A broken man has nothing left to lose"

"The gods are cruel to make us want what we cannot have"

"Nature teaches us about beauty."

"Nature teaches us patience and wisdom"

"Sometimes it snows in April."

"Every town has a soul, and Twin Peaks has a troubled one."