A quote from this:
“You don’t have to know a lot of things to make a huge difference for the Lord in the world. But you do need to know a few things that are great and be willing to live for them and die for them. People that make a difference in the world are not people who have mastered a lot of things, they are people who have been mastered by a very few things that are very, very great. If you want your life to count you don’t have to have a high IQ and you don’t have to have a high EQ, you don’t have to be smart, to have good looks, you don’t have to be from a good family or from a good school, You just have to know a few basic, simple, glorious, majestic obvious unchanging eternal things and be gripped by them and willing to lay down your life for them which is why anybody in this crowd can make a worldwide difference cos it isn’t you it’s what your gripped with. One of the really sad things about this moment right now is that there are hundreds of you in this crowd who do not want your life to make a difference all you want is to be liked maybe finish school, get a good job, find a husband or a wife a nice house a nice car, long weekends, good holidays, grow old healthy have a fun retirement die easy no hell.
And that’s all you want.
And you don’t give a rip whether your life counts on this earth for eternity and that’s a tragedy in the making. A tragedy. “
Don't waste your life, John Piper