Who said "Winter is hard, but we have learned to live in it"?

This quote is attributed to Therem Harth rem ir Estraven.

Winter is hard, but we have learned to live in it - Therem Harth rem ir Estraven

"Winter is hard, but we have learned to live in it"

Therem Harth rem ir Estraven Perseverance

Character in The Left Hand of Darkness

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"Light is the left hand of darkness"

"A man who won't work cannot love, and a man who won't love is a man who won't work"

"You cannot buy the wind"

"Shame is a barrier to love"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."