How to Use "rigor" with Example Sentences

1. And they are necessary : discipline , rigor and reliability .
2. I suppose he must care so little about the wrinkles that being critical like he is requires hardly any rigor at all .
3. Although many exams lack rigor , more children are getting respectable grades and going on to universities .
4. The approach is more practical and less abstract than other calculus books , while conserving a perfect balance between mathematical rigor and intuition .
5. The challenge is having the rigor and discipline needed to apply your project management skills correctly and proactively .