Answer: He always love mathematics, but started his career studying law and joining the army.
Explanation:
Rene Descartes is a famous person known for his great contribution in Mathematics and Philosophy.
He is also called the "Father of Modern Philosophy".
Since his childhood , he always loved mathematics but he started his career in studying law and achieved degree a license and a degree in civil and canon law from the University of Poiters.
After that he joined the army. But after leaving army he realised his affection with mathematics , so he started his study and research in mathematics and philosophy.
Therefore the life of Rene Descartes is best described as "He always loved mathematics, but started his career studying law and joining the army."