Use "life's work" em uma frase

1. His life's work was rapidly turning into a pile of dung all because of one man

2. Five hundred of the one thousand Artonians made it their life's work tending plants

3. "You may remember how the affair of the Gloria Scott, and my conversation with the unhappy man whose fate I told you of, first turned my attention in the direction of the profession which has become my life's work

4. Nothing now remained to him of his life's work