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1. Development happens in STAGES.2. There are CRITICAL PERIODS in development when the person is more vulnerable to harm or available for growth.3. QUANTITATIVE changes lead to QUALITATIVE change.4. Development is SEQUENTIAL.5. Development is also PROGRESSIVE.6. SKIPPING or RUSHING development doesn't work and/or causes harm.7. Excessive STRESS, ABUSE, or TRAUMA will get people stuck at or to regress to the stage of those experiences.8. DEVELOPMENTAL ENERGY that is denied or diverted will eventually reassert itself.9. RESILIENCY allows for skipped, rushed, incomplete, stalled, regressed, or suppressed development to be re-stimulated in the organism.10. SATIATION of developmental allows movement on to the next developmental challenge