{literary} When you are in danger or trouble, good sense helps more than foolish risks; it is better to be careful than to be foolishly brave. - A proverb. * /When you are facing a man with a knife, discretion is the better part of valor./
DISCRETION IS THE BETTER PART OF VALOR
Meaning of DISCRETION IS THE BETTER PART OF VALOR in English
Dictionary of English idioms . Словарь английских идиом. 2012