It's always too early to quit.
Always desire to learn something useful.
To be a good loser is to learn how to win.
Leap, and the net will appear.
If you can dream it, you can do it.
Wherever you are - be all there.
To know oneself, one should assert oneself.
If you're going through hell, keep going.
The most effective way to do it, is to do it.
You never know what motivates you.
I spent every night until four in the morning on my dissertation, until I came to the point when I could not write another word, not even the next letter. I went to bed. Eight o'clock the next morning I was up writing again.