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。
过去总是紧张的，而未来是完美的。
"Books are the bridges between different worlds."
There is no greater agony than bearing an untold story inside you.
Trees are the earth's endless effort to speak to the listening heaven.
A man's real possession is his memory. In nothing else is he rich, in nothing else is he poor.