Meaning of dyeing one's brain with letters (Knowledge)?

What's the meaning of dyeing one's brain with letters (Knowledge)? 
Here is a smart man's life journey for your reflection. 

1) Interested in reading.  

2) Legitimate his/her knowledge with academic diplomas. 

3) Getting rich, attaining fame and arrogance. 

4) Haunted by greed. 

5) Experience a failure. 

6) Reflecting. 

7) Rehabilitating oneself, and recovering humility. 

8) Service for people as a servant. 

9) Become a real human being. 

Every smart person should enlighten his/her darkened brain with letters through critical reflection and service for others in order to recover one's humanity. 

Jeonghwan. Choi
May 11, 2011