The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?

Never be afraid to take risks. The biggest rewards often come from the biggest risks.

The beauty of mathematics only shows itself to more patient followers.

人们早已忘记了这个道理。可是你不应将它遗忘。你必须永远对自己所驯服的东西负责。你要对你的玫瑰花负责。