There comes a time when you have to choose between turning the page and closing the book. 

Life is like a Bank ...
You'll never get anymore out of it then what you put into it

Everything in life is temporary. So if things are going good, enjoy it because it won't last forever. And if things are going bad, don't worry because it won't last forever either.

Life, is not a having and a getting, but a being and a becoming. -Myrna Loy