Who said "The warrior's path requires both skill and compassion."?

This quote is attributed to Lady Sif.

The warrior's path requires both skill and compassion. - Lady Sif

"The warrior's path requires both skill and compassion."

Lady Sif Kindness

"I am a warrior of Asgard, and I will not falter in the face of darkness."

"Strength is not measured by the power of one's blade, but by the resolve of one's heart."

"A true friend stands beside you, not behind you."

"We are forged in battle, but refined through compassion."

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."