I can, therefore I am.
The wise does at once what the fool does at last.
If you can dream it, you can do it.
Be kind whenever possible. It is always possible.
It's always too early to quit.
To know oneself, one should assert oneself.
Be gentle to all and stern with yourself.
Always desire to learn something useful.
Quality is not an act, it is a habit.
Begin to be now what you will be hereafter.
I learned easily and had time to follow my inclination for sports (light athletics and skiing) and chemistry, which I taught myself by reading all textbooks I could get.