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 Langlands program is an invitation to explore the unknown territories of mathematics.
A 1% improvement in efficiency could mean the difference between life and death.
唯一真实的思想是那些不理解自身的思想。