know one's limits
Definition of know one's limits
: to know how much one is able to do It's important to exercise, but you need to know your limits.
Word by Word Definitions
: to perceive directly : have direct cognition of
: to have understanding of
: to recognize the nature of : discern
Seen and Heard
What made you want to look up know one's limits? Please tell us where you read or heard it (including the quote, if possible).