Book V Chapter 19

‘Disposition’ means the arrangement of that which has parts, in respect either of place or of potency¹ or of kind; for there must be a certain position, as even the word ‘disposition’ shows.

1 potency   

n. 效力，潜能

参考例句：

• Alcohol increases the drug's potency.酒精能增加这种毒品的效力。
• Sunscreen can lose its potency if left over winter in the bathroom cabinet.如果把防晒霜在盥洗室的壁橱里放一个冬天，就有可能失效。