One of the easiest ways to do this is when we are doing nothing. When we have no real goals in life we lack direction and this is when we get lost and do not know our purpose in life. Here are some Christian quotes that I pray encourage you to do something.
Quotes from Famous Christians

You Can Do it

“I am only one, but still I am one. I cannot do everything, but still I can do something; and because I cannot do everything, I will not refuse to do something that I can do.” ~ Helen Keller

Behave in Love

“Do not waste time bothering whether you ‘love’ your neighbor; act as if you did. As soon as we do this we find one of the great secrets. When you are behaving as if you loved someone, you will presently come to love him.” ~ C.S. Lewis...http:///articles/christian-quotes-will-encourage-something/