Computers are useless. They can only give you answers. --Pablo Picasso

1. Psychology assumes that the individual exists and can be defined.
2. It is difficult, or impossible, to precisely and accurately identify the boundary between the individual human being and its environment.
3. Psychology is the study of human emotions, behaviors, and thoughts.
4. Psychology is part of biology, zoology, and primatology.
5. We lie to ourselves.
6. Human behavior is at least somewhat predictable.
7. Science is a brutal competition of ideas.
8. Science is amoral.
9. Science is the study of nature. Nature includes everything.
10. A theory which cannot be mortally endangered cannot be alive.
11. Thoughts, feelings, and behaviors are ultimately determined by DNA and the environment, and proximately determined by neuronal activity.
12. Some behavior is considered abnormal, but being abnormal is not necessarily bad.
13. Every mental process has an underlying biological process.
14. The best predictor of future behavior is past behavior.
15. Humans must sleep. We generally spend more than one-third of our lives asleep.
16. Humans behave in different ways at different stages in their development.
17. Brain plasticity is incessant and lifelong.
18. Power and money often play an important role in the research and practice of psychology.
19. Be wary of scientific dualisms. Sometimes the "opposing forces" (e.g., mind vs. body, emotion vs. reason, nature vs. nurture) are merely two names for the same thing.
20. Oftentimes, "I don't know" is a very good answer.