Who said "Patience is the virtue of those who have learned to wait"?

This quote is attributed to Therem Harth rem ir Estraven.

Patience is the virtue of those who have learned to wait - Therem Harth rem ir Estraven

"Patience is the virtue of those who have learned to wait"

Therem Harth rem ir Estraven Patience

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"

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."