This week’s best business quotes come from the worlds of smoking, central banking, immigration and retailing.

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“More people die every year from smoking than from murder, AIDS, suicide, drugs, car crashes and alcohol, combined.”

Court-ordered ads, paid for by Big Tobacco, which begin Sunday after 11 years of legal delays by the industry.

“This is just nuts. And it’s nuts dressed up as science.”

David Robinson, a Georgetown University law professor, on a federal plan to use artificial-intelligence methods to scrutinize immigrants and visa applicants.

“Sometimes they call it a cacophony. She managed to turn it into a symphony.”

Andrew Levin, a Dartmouth economist, on Janet Yellen’s ability to lead the Federal Reserve, with its many independent voices.

“Nobody wants to be the first one to raise prices.”

Analyst Jennifer Bartashus on the grocery price war among discount retailers such as Wal-Mart, Lidl and Aldi.

“It was like going to someone’s room to hang out.”

A Los Angeles graduate student, on visiting the first Nordstrom Local showroom-style store.