It's always too early to quit.
The dog that trots about finds a bone.
Always desire to learn something useful.
To be a good loser is to learn how to win.
What you do today can improve all your tomorrows.
The most effective way to do it, is to do it.
If you can dream it, you can do it.
Problems are not stop signs, they are guidelines.
By failing to prepare, you are preparing to fail.
If you think you can do it, you can.
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.