No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.
无论多么复杂或精细,所有行为都可以用刺激和反应来解释。
In peace, sons bury their fathers. In war, fathers bury their sons.
体育教育的伟大思想不在于对身体本性的教育,而在于体育训练与全面教育的关系。
"A man's memory might have only a hundred clear days in it and he has lived thousands."