It’s not what we do once in a while that shapes our lives, but what we do consistently.

"We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction."

在空闲的时候不做准备，危急的时候却临时抱佛脚。国家发生战乱时，才想到有名的将领；家庭贫困时才希望能有个贤惠的妻子。

Own only what you can always carry with you: know languages, know countries, know people. Let your memory be your travel bag.

You can obsess about serving your customers/audience/clients， or you can obsess about beating the competition. Both work， but of the two， obsessing about your customers will take you further.

The thing that we are trying to do at Facebook, is just help people connect and communicate more efficiently.