Be thine own palace, or the world's thy jail.
If you think you can do it, you can.
The secret of getting ahead is getting started.
Begin to be now what you will be hereafter.
You never know what motivates you.
If you've got a talent, protect it.
The most effective way to do it, is to do it.
Who seeks shall find.
The dog that trots about finds a bone.
Expect problems and eat them for breakfast.
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.