Without hard work, nothing grows but weeds.
Never complain and never explain.
Be gentle to all and stern with yourself.
It's always too early to quit.
What you do today can improve all your tomorrows.
Leap, and the net will appear.
Know or listen to those who know.
After a storm comes a calm.
Well done is better than well said.
The secret of getting ahead is getting started.
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.