It is easier to learn a new concept by tying it to an already known concept
We've seen that [compact ideas] are stickier, but that compact ideas alone aren't valuable—only ideas with profound compactness are valuable. So, to make a profound idea compact you've got to pack a lot of meaning into a little bit of messaging. And how do you do that? You use flags. You tap the existing memory terrain of your audience. You use what's already there.
We do not love people so much for the good they have done us, as for the good we do them.
Love does not consist of gazing at each other, but in looking outward together in the same direction.
It is not a lack of love, but a lack of friendship that makes unhappy marriages.