Begin to be now what you will be hereafter.
Do not weep do not wax indignant. Understand.
If you can dream it, you can do it.
It's always too early to quit.
To know oneself, one should assert oneself.
The wise does at once what the fool does at last.
Without hard work, nothing grows but weeds.
Expect problems and eat them for breakfast.
Be thine own palace, or the world's thy jail.
If you're going through hell, keep going.
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.