Wiktionary
discretion is the better part of valor
prov. (alternative form of discretion is the better part of valour English)
Usage examples of "discretion is the better part of valor".
I think this is a case in which discretion is the better part of valor.
This fellow charged Nobs, whose Capronian experiences had taught him that discretion is the better part of valor--with the result that he dived head foremost into the stream beside me after giving vent to a series of ferocious growls which had no more effect upon Hyaena spelaeus than might a sweet smile upon an enraged tusker.
In circumstances such as these, discretion is the better part of valor.