life's work

Such a wearisome round of dullest duties and painful pleasures as it is their lifes-work to live in like a tread-mill.

Never tear down character, it is the choicest gift in the universe and constitutes lifes work.

I told you shortly after the outbreak of the war that my lifes work was wrecked.

He read enormously, and by twenty he considered that he was fully equipped for his lifes work.

In her bridal white, she looked like the lily of his lifes work, the angel of his worried heart.