Tony Robbin's 6 Human Needs

Tony lists these needs:

  1. Certainty/Comfort
  2. Uncertainty/Variety
  3. Significance
  4. Love & Connection
  5. Growth
  6. Contribution

Seems that these are things Tony made up, as searching Research Gate for them returned zero results.

Which is unfortunate as they seem quite useful and true. Any ideas for what research he is mapping these on?