Who said "Strength is not measured in muscle but in certainty."?

This quote is attributed to Kang.

Strength is not measured in muscle but in certainty. - Kang

"Strength is not measured in muscle but in certainty."

Kang Strength

"I have seen the future, and it is terrible. Unless we act now."

"You cannot escape your destiny. I have already won."

"Time is a river, and I have learned to swim upstream."

"All timelines collapse into one. Mine."

"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."