森林物种的多样性反映了商业思维所需的多样性。
超导理论不仅仅是一种特定现象的理论,而是量子凝聚态物质的一般理论。
Internal mental events are irrelevant to the scientific study of behavior.
The lover's discourse is today of an extreme solitude.
"To live is the rarest thing in the world. Most people exist, that is all."
"I write to find out what I think."