"Tomorrow is tomorrow. Future cares have future cures, and we must mind today."
Sophocles (circa 497 BC - 406 BC) (Renowned Greek Playwright)
Sophocles is one of three ancient Greek tragedians whose plays have survived. His first plays were written later than those of Aeschylus, and earlier than or contemporary with those of Euripides. Wikipedia (To learn more, please click on this Wikipedia link)