1. "Smooth seas do not make skillful sailors." - African Proverb
3. "In the middle of difficulty lies opportunity." - Albert Einstein
4. "The gem cannot be polished without friction, nor man perfected without trials." - Chinese Proverb
5. "The only way to achieve the impossible is to believe it is possible." - Charles Kingsleigh (Alice in Wonderland)
6. "Challenges are what make life interesting and overcoming them is what makes life meaningful." - Joshua J. Marine
7. "Every adversity, every failure, every heartache carries with it the seed of an equal or greater benefit." - Napoleon Hill
8. "Don't be afraid to give up the good to go for the great." - John D. Rockefeller
9. "Strength and growth come only through continuous effort and struggle." - Napoleon Hill
10. "You never know how strong you are until being strong is your only choice." - Bob Marley
