^ doesn't have a clue what is required for intelligence to emerge.
Perhaps you should have said "locomotion is a requirement for a species to evolve intelligence." All you said is that locomotion is a requirement of intelligence. I think Stephen Hawking would disagree with that.
One might argue that locomotion isn't a direct requirement for a species to evolve intelligence, but rather a requirement of animal survival, but no need to get into that.
Also, you said that intelligence emerged after creatures left the sea. How are you defining intelligence? Most animals can be said to have some degree of intelligence, are you saying self-awareness? And would you not consider whales and dolphins intelligent creatures?
You said that creatures that left the sea had to develop locomotion. That is unlikely. Instead, it is more likely that such creatures had to develop new forms of locomotion; I am unaware of any animal life which does not engage in some sort of locomotion.
Perhaps your statements aren't accurately reflecting the points you are trying to get across.