Explanation:

- Pasteur remained a simple man (1)______ heart.

At his core, Pasteur stayed humble despite his achievements.

- when he (2)______ the familiar scenes of his birthplace

He often remembered where he grew up.

- and the (3)______ to be a great artist never wholly left him.

He once dreamt of being a renowned artist.

- He did (4)______ a great artist

He didn't become an artist.

- after his sixteenth year he (5)______ the brush forever.

He stopped painting after turning sixteen.

- He put his soul and energy (6)______ his work

He dedicated himself fully to his work.

- and it was this very energy that in the end (7)______ him out

His dedication eventually exhausted him.

- For him, each sufferer was more than (8)______ a case

He saw patients as individuals, not numbers.

- He looked upon the (9)______ against hydrophobia as a battle

He viewed fighting rabies like a serious challenge.

- Option 1: "Mutiny" implies rebellion, inappropriate context.

- Option 2: "Scuffle" implies a small brawl, not fitting.

- Option 3: "Rivalry" implies competition, not suitable.

- Option 4: "Fight" aligns with the battle context.

- and he was (10)______ to win at any cost.

He was determined to succeed.