Who said "I have learned that strength comes in many forms."?

This quote is attributed to Heimdall.

I have learned that strength comes in many forms. - Heimdall

"I have learned that strength comes in many forms."

Heimdall Strength

"I am Heimdall, guardian of the Bifrost. I see all, I hear all."

"The nine realms are connected, and I watch over every thread that binds them."

"Vigilance is not a burden—it is a privilege."

"I have stood at this post since before your kind learned to walk upright."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."