To be a good loser is to learn how to win.
Be gentle to all and stern with yourself.
Always desire to learn something useful.
If you're going through hell, keep going.
Problems are not stop signs, they are guidelines.
Without hard work, nothing grows but weeds.
You never know what motivates you.
If you can dream it, you can do it.
Well done is better than well said.
It's always too early to quit.
If you always put limit on everything you do, physical or anything else. It will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.