What is the difference between a Turing machine and the modern computer? It's the same as that between Hillary's ascent of Everest and the establishment of a Hilton hotel on its peak.

we can go back to the cave if you like.

抛弃不必要的欲望，你就能找到真正的自由。

The interest of the behaviorist in man's doings is more than the interest of the spectator—he wants to control man's reactions as physical scientists want to control and manipulate other natural phenomena.

Efficiency and ethics must go hand in hand. Cutting corners today will cost us dearly tomorrow.