Always desire to learn something useful.
After a storm comes a calm.
If you can dream it, you can do it.
I can, therefore I am.
Be thine own palace, or the world's thy jail.
Without hard work, nothing grows but weeds.
Quality is not an act, it is a habit.
Leap, and the net will appear.
It's always too early to quit.
Know or listen to those who know.
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.