Definition of "yesterday"

Yesterday, upon the stair / I met a man who wasn’t there / He wasn’t there again today / I wish, I wish he’d go away …

1899, Hughes Mearns, Antigonish

All our yesterdays have lighted fools the way to dusty death.

c. 1606 (date written), William Shakespeare, “The Tragedie of Macbeth”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act V, scene v]

Risk is everywhere. From tabloid headlines insisting that coffee causes cancer (yesterday, of course, it cured it) to stern government warnings about alcohol and driving, the world is teeming with goblins. For each one there is a frighteningly precise measurement of just how likely it is to jump from the shadows and get you.

2013 June 22, “Snakes and ladders”, in The Economist, volume 407, number 8841, page 76