The PAC learning framework provides a formal way to quantify the learnability of a concept class.

Trust is earned through actions, not words.

作家必须成为四种人：疯子、偏执狂、文体家和批评家。

You have to figure out what your own aptitudes are. If you play games where other people have the aptitudes and you don’t, you’re going to lose. And that’s as close to certain as any prediction that you can make. You have to figure out where you’ve got an edge. And you’ve got to play within your own circle of competence.

Coal has powered our past, but we must be honest about its role in our future.

The future of dairy lies in balancing tradition with innovation.

未来的零售，一定是线上线下融合。

The most dangerous phrase in manufacturing is 'we've always done it this way'.