

Le quattro affermazioni sopra riportate, nelle loro versioni formali, sono state controllate e confermate dai seguenti scienziati:
| Debra Lieberman, Ph.D. The University of Miami |
Joshua D. Greene, Ph.D. Harvard University |
| Donald Brown, Ph.D. University of California, Santa Barbara |
Oliver Scott Curry, Ph.D. The University of Oxford |
| Frans de Waal, Ph.D. Emory University |
Peter DeScioli, Ph.D. Stony Brook University |
| Herbert Gintis, Ph.D. The University of Massachusetts, Amherst |
Peter Singer Princeton University |
| Jessica Pierce, Ph.D. The University of Colorado |




