Harvard Library

1. Sleep now, dream will come out; Study now, dream will come true.
2. The pain of study is temporary; the pain of not study is lifelong.
3. You do not lack of time to study, you are lacking of efforts. 
4. Study is one but not the only component of your life, but if you cannot even overcome this single component, what can you overcome?
5. Get up early, grind out hardy, gain on success. 
6. Nobody succeeds easily without complete self-control and strong perseverance.
7. Time pass by. 
8. Stop walking today and you will have to run tomorrow. 
9. People who invest the future are the true realists.
10. No pain, no gain. 

Of studying. The pain of studying.