Who said "The ocean's depths contain secrets we're still learning."?

This quote is attributed to Aquaman (DCEU).

The ocean's depths contain secrets we're still learning. - Aquaman (DCEU)

"The ocean's depths contain secrets we're still learning."

Aquaman (DCEU) Knowledge

"I'm a king. Kings don't run."

"The surface world has much to learn about respect."

"My people have watched you from below for centuries."

"I didn't come here to fight you."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."