Who said "We must be patient with ourselves."?

This quote is attributed to Sif.

We must be patient with ourselves. - Sif

"We must be patient with ourselves."

Sif Patience

"I have waited lifetimes for this moment."

"A warrior's heart beats strongest in battle."

"We are bound by more than just duty."

"The past shapes who we become."

"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."