Mark 10:42 But Jesus called them [to him], and saith unto them, Ye know that they which are accounted to rule over the Gentiles exercise lordship over them; and their great ones exercise authority upon them.
10:43 But so shall it not be among you: but whosoever will be great among you, shall be your minister:
10:44 And whosoever of you will be the chiefest, shall be servant of all.
10:45 For even the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many.
This is one of my most, if not my most favorite texts in all of Scripture. How can I have any higher ambition than the ambition of the Son of God: To serve others and give my life for them?