There's a great quote by John Mark Comer - "In the end, your life is no more than the sum of what you gave your attention to."
You were put on earth to do more than just wake up, work, eat and sleep. Be in constant search for your higher purpose. Ask questions such as: If not now, when? If not me, who?
We also love this quote: "People who are fully alive look out of their minds to those who simply exist." - McManus