Leap, and the net will appear.
If you're going through hell, keep going.
If you think you can do it, you can.
By failing to prepare, you are preparing to fail.
Who seeks shall find.
Never complain and never explain.
Problems are not stop signs, they are guidelines.
The wise does at once what the fool does at last.
Know or listen to those who know.
Either you run the day or the day runs 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.