真正的领导力意味着做出今天艰难的决定，这些决定将在几十年后获得回报。

"The artist's duty is to reveal the invisible through the visible."

"We need to think of software not just as code, but as a mathematical object that can be analyzed and verified."

The hardest thing about being a leader is demonstrating or showing vulnerability... When the leader demonstrates vulnerability and sensibility and brings people together, the team wins.

At that age， I'd take any excuse to make estimates and do minor arithmetic. I'd calculate our gas mileage -- figure out useless statistics on things like grocery spending. I'd been hearing an ad campaign about smoking. I can't remember the details， but basically the ad said， every puff of a cigarette takes some number of minutes off of your life: I think it might have been two minutes per puff. At any rate， I decided to do the math for my grandmother. I estimated the number of cigarettes per days， estimated the number of puffs per cigarette and so on. When I was satisfied that I'd come up with a reasonable number， I poked my head into the front of the car， tapped my grandmother on the shoulder， and proudly proclaimed， "At two minutes per puff， you've taken nine years off your life！"

The measure of intelligence is the ability to change.

幸福的关键是有梦想。成功的关键是实现你的梦想。