SAILING by Andrew S. Grove

“It’s like sailing a boat when the wind shifts on you but for some reason, maybe because you are down below, you don’t even sense that the wind has changed until the boat suddenly heels over.

What worked before doesn’t work anymore; you need to steer the boat in a different direction before you are in trouble, yet you have to get a feel of the new direction and the strength of the wind before you can hope to right the boat and set a new course.”