No half measures noun
The opposite phrase is "half measures".
There is no restriction or constraint on the amount of effort or resources used or that could be used, especially used when you want something to be done as good as possible.
I want my wedding to be perfect. I mean there are no half measures: the best dishes, the best music, and the best photos.
No half measures were adopted by the government to alleviate the spread of Covid-19.
There were no half measures in the conference from the very beginning to the end.
To do one's best or try one's best to do something
If you desire something good or appealing, you must make the necessary effort to acquire it.
To work really hard in order to attain something.
Used to describe a way of searching, investigating or examining something in precise detail and with great care
This phrase is traceable to the compound noun "half-measure", which was recorded in 1798.