Tomorrow is the Day & a Quote

Today I am practicing not worrying, as I study for my Reading and Math PSSA's, which are on Monday and Tuesday. I am almost completely confident in reading, but math is a completely different story, but with tutorials from helpful teachers, I hope to build and refresh what skills I do have and use them best I can tomorrow. Please pray!
Now, for a quote/concept I thought of last year and miraculously still remember!

"Life is not measured by its length, but by the hills and the valleys, and the rivers and mountains."