1、Emulation is the whetstone of wits.
競賽是智力的磨刀石.

2、"Unconstructive criticism of physical appearance is as bad as it gets," Whetstone said.
“毫無助益地批評外貌，要多糟有多糟，”惠茨通說。

3、A fine-grained whetstone lubricated with oil, used for fine sharpening
油石用油潤滑過的細砂磨刀石，用于細磨

4、There is no whetstone like praise, to sharpen a good wit and encourage a will to learn.
沒有比褒獎更好的磨刀石了，它能成就聰慧，鼓勵學習的決心。

5、Competition is the whetstone of talent.
競爭磨煉才能。

6、A fine-grained whetstone for giving a keen edge to a cutting tool.
細磨刀石紋理細密的磨刀，可使切削工具刀刃鋒利

7、A fine-grained whetstone for giving a keen edge to a cutting tool
細磨刀石紋理細密的磨刀，可使切削工具刀刃鋒利

whetstone翻譯