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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.
not for (a) lack of trying
Despite putting forth a decent amount of effort or energy. A: "So, did he agree to go on a date with you?" B: "No. Not for lack of trying, mind you." I'm sorry your team lost, but it wasn't for a lack of trying!
lack for (something)
To lack something one or something wants or requires, or would benefit from. You don't need to get me anything for my birthday, Mom—I really lack for nothing. The only thing he lacks for is the motivation to put his skills to goof use.
lack for something
to lack something. We don't lack for new ideas. We lack for nothing, thank you.
have/lack the courage of your conˈvictionsbe/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?
not for lack/want of ˈtryingused to say that although somebody has not succeeded in something, they have tried very hard: He’s had no success in finding a job, though not for lack of trying.
To be in need of something or someone. Used chiefly in the negative: She is very popular and does not lack for friends. Because he's rich, he doesn't lack for luxuries.