Study without desire spoils the memory, and it retains nothing that it takes in.
Milan
Learning never exhausts the mind.
As a well-spent day brings happy sleep, so a life well spent brings happy death.
The noblest pleasure is the joy of understanding.
Nothing great was ever achieved without enthusiasm.
Wherever you go, go with all your heart.
I think it all comes down to motivation. If you really want to do something, you will work hard for it.
