William Osler,
A way of life
(1913)
“ The load of to-morrow, added to that of yesterday, carried to-day makes the strongest falter. Shut off the future as tightly as the past. No dreams, no visions, no delicious fantasies, no castles in the air, with which, as the old song so truly says, "hearts are broken, heads are turned." To youth, we are told, belongs the future, but the wretched to-morrow that so plagues some of us has no certainty, except through to-day. Who can tell what a day may bring forth? Though its uncertainty is a proverb, a man may carry its secret in the hollow of his hand. ”
