Who seeks shall find.
Without hard work, nothing grows but weeds.
Only the educated are free.
Expect problems and eat them for breakfast.
Things do not happen. Things are made to happen.
Well done is better than well said.
It's always too early to quit.
If you think you can do it, you can.
The secret of getting ahead is getting started.
Either you run the day or the day runs you.
The grounding in natural sciences which I obtained in the course of my medical studies, including preliminary examinations in botany, zoology, physics, and chemistry, was to become decisive in determining the trend of my literary work.