I don't live in the past, I focus on the present and the future.

Propaganda is to a democracy what the bludgeon is to a totalitarian state.

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.

电流体不是由机器创造的，而是由它收集的。

医生知道的如此之少，收费却如此之高。

The stream of thought is a stream of life-preserving adjustments.