I know when this is coming because people at the club stop talking about the future. That is a big sign. When I see that the Arc is on the decline I start looking for a new Club!

We are the same people, physically: today, we have no additional neurons, no better wiring. But our tools for thinking – our ideas, hypotheses, theories, models – are marvellously improved. The only reason we are better at thinking and doing things now is that we accumulate knowledge and pass ideas and information from one generation to the next.

You must free yourself from the fear of losing something such that you can enjoy that something. If you're afraid of a relationship ending, you'll never be able to enjoy the relationship.

If the sixty hours of capacity was always there in those rats — what are we writing off as fixed limits in human beings that are actually just locked potential waiting for the right belief?

Don't make the mistake of confusing net worth and self-worth.