It Takes an Investment of Effort for Tasks to Become Enjo...

Nothing is Fun Until You\'re Good at It > Similarity > A Useful Metaphor for Maintaining Momentum
Bill Cosby uses the metaphor of a plane burning the most fuel on takeoff before leveling out in the clouds and Amy Chua argues that skills are fun once a child overcomes the frustration of learning them.

 The Importance of Motherese

The Importance of "Motherese" > Additional Support/Evidence > How Motherese Teaches Babies Language
The slow, repetitive, simplistic intonations of motherese crosses cultures and genders and helps babies to learn the sounds of their culture's language so they may pluck the individual words out of the unbroken strings of sounds that comprise sentences.