Behavior is determined by the current stimulus situation and past reinforcement history.
行為由當(dāng)前刺激情境和過(guò)去的強(qiáng)化歷史決定。
作家必須甘于冒險(xiǎn)。
技術(shù)的本質(zhì)絕不是任何技術(shù)性的東西。
It is personalities, not principles, that move the age.