have/lack the courage of your convictions

lack the courage of (one's) convictions

To not have the confidence to act or behave in accordance with one's beliefs or ideologies, especially in the face of resistance, criticism, or persecution. The governor was presented with a bribe to help the corporation avoid regulation, and she accepted it because she lacked the courage of her convictions.
See also: conviction, courage, lack, of
Farlex Dictionary of Idioms.

have the courage of your convictions

act on your beliefs despite danger or disapproval.
1998 Times The knives were out for us and we had to have the courage of our convictions.
See also: conviction, courage, have, of
Farlex Partner Idioms Dictionary

have/lack the courage of your conˈvictions

be/not be brave enough to do what you believe to be right: You say that cruelty to animals is wrong, so why not have the courage of your convictions and join our campaign?
See also: conviction, courage, have, lack, of
Farlex Partner Idioms Dictionary
See also:
  • lack the courage of (one's) convictions
  • courage of one's convictions, have the
  • have the courage of (one's) convictions
  • have the courage of convictions
  • have the courage of your convictions
  • live (one's) own life
  • live your own life
  • act (one's) age
  • act one's age
  • Act your age!