Know or listen to those who know.
The dog that trots about finds a bone.
Quality is not an act, it is a habit.
If you can dream it, you can do it.
What you do today can improve all your tomorrows.
I can, therefore I am.
Without hard work, nothing grows but weeds.
Problems are not stop signs, they are guidelines.
Things do not happen. Things are made to happen.
Be kind whenever possible. It is always possible.
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.