行为主义者放在自己面前的规则或衡量标准总是:我能否用"刺激和反应"来描述我所看到的这一行为?
The performance standard must be Zero Defects. Not 'that's close enough'.
Every building is a prototype; no two are exactly alike.
数学的美只向更有耐心的追随者展示。
"Biography is the closest we come to time travel."