Expect problems and eat them for breakfast.
Either you run the day or the day runs you.
Be thine own palace, or the world's thy jail.
Only the educated are free.
Well done is better than well said.
Always desire to learn something useful.
To be a good loser is to learn how to win.
The most effective way to do it, is to do it.
It's always too early to quit.
Be kind whenever possible. It is always possible.
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.