Know or listen to those who know.
If you can dream it, you can do it.
By failing to prepare, you are preparing to fail.
Without hard work, nothing grows but weeds.
The wise does at once what the fool does at last.
If you're going through hell, keep going.
The most effective way to do it, is to do it.
Either you run the day or the day runs you.
Expect problems and eat them for breakfast.
Only the educated are free.
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.