"She was an unusual woman," concluded Dr. Conwell, "and she worked with enthusiasm and tirelessness.
"Acres of Diamonds"
Russell H. Conwell
The girl's lithe power, the tirelessness of her stride, the quick grace, low voice and steady-shaded eyes full of, full of- Skag hadn't the word at hand.
"Son of Power"
Will Levington Comfort and Zamin Ki Dost
"There are times," said The Author to me, darkly, "when the terrifying tirelessness of youth gives me a vertigo.
"A Woman Named Smith"
Marie Conway Oemler