The 9th key may be the door opener. Don't give up after trying the 8th. Keep doing it!

Never be afraid to try. The only angle through which you can approach success is by the “try-angle”. You may fail if you try, but shame unto you if you don’t try at all. If you fail…rise up and try again and again!

To conquer the dangers of giving up, do what your passion moves you to do.

Don't give up too early because everyone is ahead of you and you are far behind them. Set a standard for yourself and keep beating that standard regularly!

Don't give up the fight. Don't dim out the light. Those who at first don't believe in you, will soon begin to ask you "how did you do it?” Keep it up!

You are likely to fall when you stop paddling your bicycle. Such is life. As long as you don’t give up, you will never end up failing!