What’s the difference between criticism and correction?

• Criticism seeks to tear down; correction seeks to build up.
• The one criticizing feels some pleasure in saying what they say; the one correcting only finds pleasure in helping their friend change for the better.
• Criticism is often a habitual thing. Correction is only done when necessary.
• Critics often rush to offer their opinions. Those seeking to correct usually do so with some reluctance.

What would you add?