At some point in the 1970s, Lego included the following letter to parents in its sets:
The text reads:
The urge to create is equally strong in all children. Boys and girls.
It’s imagination that counts. Not skill. You build whatever comes into your head, the way you want it. A bed or a truck. A dolls house or a spaceship.
A lot of boys like dolls houses. They’re more human than spaceships. A lot of girls prefer spaceships. They’re more exciting than dolls houses.
The most important thing is to the put the right material in the their hands and let them create whatever appeals to them.
The letter seems like the sort of thing that might be fake, but Robbie Gonzalez of io9 presents the case for its authenticity.
In our home, Lego currently rules the roost…the kids (a boy and a girl) spend more time building with Lego than doing anything else. This weekend, they worked together to build a beach scene, with a house, pool, lifeguard station, car, pond (for skimboarding), and surfers. Dollhouse stuff basically. Then they raced around the house with Lego spaceships and race cars. Nailed it, 1970s Lego.
Update: QZ confirms, the letter is genuine.