Preach, Die And Be Forgotten

Preach the gospel, die and be forgotten. - Count Zinzendorf

Have no ambition, leave no legacy
But as for you, do you seek great things for yourself? Stop seeking! For I am about to bring disaster on every living creature - this is the LORD's declaration - 'but I will grant you your life like the spoils of war wherever you go.'" (Jeremiah 45:5 HCSB)
He must increase, but I must decrease. (John 3:30 KJV,ESV,NASB)

Leave a mark, make a difference
And they said, Go to, let us build us a city and a tower, whose top may reach unto heaven; and let us make us a name, lest we be scattered abroad upon the face of the whole earth. (Genesis 11:4 KJV)

Futility
Vanity of vanities, saith the Preacher, vanity of vanities; all is vanity. What profit hath a man of all his labour which he taketh under the sun? (Ecclesiastes 1:2-3 KJV)
Why do you spend your money for that which is not bread, and your labor for that which does not satisfy? Listen diligently to me, and eat what is good, and delight yourselves in rich food. (Isaiah 55:2 ESV)
Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed. (John 6:27 KJV)

Hope

And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea. (Revelation 21:1 KJV)

Things that count
For in Christ Jesus neither circumcision nor uncircumcision counts for anything, but only faith working through love. (Galatians 5:6 ESV)
And now abideth faith, hope, charity, these three; but the greatest of these is charity. (1 Corinthians 13:13 KJV)