You cannot be diminished by someone cheating...

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If you decide to make someone the enemy and you’re pushing very hard against them, you don’t affect them at all, but you disconnect yourself from the Stream. If someone cheats you, they cannot diminish your experience. They only diminish their experience.  **Comments below**

You cannot be diminished by someone cheating you unless you get all upset about being cheated and push against them and use that as your excuse to disconnect from the Stream.

—Abraham

You cannot be diminished by someone cheating...