### Instruction: Rewrite this English sentence to give a better translation.

### English: When embarking on a challenging endeavor that advances a cause that we firmly believe in, it is important to focus on the possibility of success and consider the consequence of not acting.
### English rewrite: What I have learned is that, when embarking on a challenging endeavor that advances a cause that we firmly believe in, it is important to focus on the possibility of success and consider the consequence of not acting.