To be a good loser is to learn how to win.
Always desire to learn something useful.
You never know what motivates you.
By failing to prepare, you are preparing to fail.
Never complain and never explain.
Go for it now. The future is promised to no one.
Be thine own palace, or the world's thy jail.
If you've got a talent, protect it.
Be gentle to all and stern with yourself.
To know oneself, one should assert oneself.
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.