resourcefulness; quick wits; mental resources
Refers to the ability to devise clever plans or strategies, often in difficult situations. Can imply both innate intelligence and acquired cunning.
I'm always amazed by his resourcefulness.
We need quick wits to get through this difficult situation.
策略 refers to a specific scheme or stratagem, often with a negative connotation of trickery, whereas 知略 is a broader term for mental resourcefulness.
Standard kanji spelling using 知 (wisdom, knowledge).
Alternate kanji spelling using 智 (wisdom, intellect). Slightly more formal or literary feel.
Compound of 知 (wisdom, knowledge) and 略 (plan, strategy). The exact historical derivation is uncertain, but the word has been used in classical and modern Japanese to denote cleverness in planning.