a high and noble purpose的用法和样例：
- These astronauts knew the dangers,and they faced them willingly,knowing they had a high and noble purpose in life.
- Satire is a high and subtle art.
- There is a higher and a lower form of penitence.
- Screams a higher and higher wave.
- 13 Once you are promoted to a high and noble position, you will be confronted with heartless criticism at once. Anything that you do would hurt somebody or devastate something.