ruthlessness

"The teacher explained the new math concept quickly. "

"My daughter's teacher is very kind and helpful. "

"Out with the old, in with the new."

"The being in the classroom was quiet today. "

"The efficiency of the planning department is deplorable."

"Asphalt, composed of oil and sand, is a widely used material for roads."

"It looks weaker and weaker, the more I think about it."

"to allow a servant his liberty;  to allow a free passage;  to allow one day for rest"

"Important types of property include real property (land), personal property (other physical possessions), and intellectual property (rights over artistic creations, inventions, etc.)."

"The casserole dish needs a cover to keep the food warm. "

"I think this bird is a him, but it may be a her."

"The ruthless businessman demanded long hours and high productivity from his employees, showing no concern for their personal lives. "