I think that obstacles lead to growth and ultimately, the most learning I've done in my life is between jobs.
“OK, the wonderful thing about soccer is, a football is a perfectly round object, and it doesn't make mistakes. The player using it makes mistakes. And the more you use it, the less mistakes you make.”
“When a woman gives birth to a child, the child needs to be able to digest the mother's milk; but when this child is old enough to begin to eat other foods, there is some switching off of this ability to consume milk.”