representation = passive; science isn't assertive. Science is purely passive which is why scientists can never assert something is true but only that it hasn't been disproven. A scientist can say "this is what general relativity says, this is how general relativity maps onto the bending of light, apply it to your work or not. Take it or leave it."
scientism = passive-aggressive; it is assertive by asserting "no metaphysical woo" passively using representations provided by science. They're like the coworker who passively expresses how he feels about his boss by little gestures.
cognition (what Bergson called intuition) = assertive; it reaches knowledge of truth which is why it can definitely assert something is true. But it isn't forceful so it can't convince other people which is why it only reaches up to your being.