永遠不要等待明天！明天到來的時候，它就叫做「今天」了！The problem with waiting until tomorrow is that when it finally arrives, it is called today.

永遠不要等待明天！明天到來的時候，它就叫做「今天」了！─吉米．隆(Jim Rohn)，成功哲學大師
The problem with waiting until tomorrow is that when it finally arrives, it is called today.