There's a lot of profound thinking packed into these 6 minutes. Phillip Zimbardo of the 1971 Stanford Prison experiments has some very wise things to say about happiness and decision-making in relation to our perspective on the past, present, and future, all solidified in years of behavioral research.
Interestingly enough, he also briefly alludes to the idea I've be taken by lately, that our decision-making is far more outside of our conscious control than we ever care to believe.
And I of course love the key idea that perspective determines our reality, particularly as applied here to forming habits and having the discipline to achieve goals.