words & sounds & images

Can you guess what famous saying this video represents?

In the first part, we hear raucous crashing and banging, and we read a string of rough gibberish letters... but we see a very serene beachside scene.

Next, we see gory footage from a violent video game, and we read swears and exclamations flashing up the screen... but we hear a flowery flute.

Finally, we see Scar from The Lion King rule over the animals on a hellish cliff, and we hear Hitler deliver an agitated address... but we read a message of love.

In each part, the "good" element is always the odd one out. It's subtle, but the message is:
See no evil, hear no evil, speak no evil.