Keenness is the spirit of learning.
No one ever success in learning in an area where he lacks keenness.
Keenness is advanced expression of interest.
With keenness you can learn just anything.
It also motivates self-development in any field of endeavor.
With keenness one can advance from learning to leading.
There is no limit nor barrier to a keen person.
Only those who live intensely and incisively on the cutting edge can penetrate barriers of life.
To the keen, nothing is ever impossible.
Keenness makes one ardent, avid and crazy in his pursuit.
To the keen is reserved excellence.