Behavior is determined by the current stimulus situation and past reinforcement history.
我认为我们都有一些对失败的恐惧，而这正是驱使我们成功的原因。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
Inflation is the mechanism that can make the universe flat, homogeneous, and isotropic.
"Books so special and rare and yours that advertising your affection feels like a betrayal."
数学推理可以相当系统地看作是对两种能力的结合运用，我们可以称之为直觉和独创性。