Wiktionary
discretion is the better part of valour
alt. It is often wise to refrain from seemingly brave speech or action. prov. It is often wise to refrain from seemingly brave speech or action.
Usage examples of "discretion is the better part of valour".
Frankly, I believe discretion is the better part of valour in this case and without abating a jot of my faith in you, Travis, well, I'd pay first and expose the fraud afterward, after the election, at leisure.