The key to successful investing is to have a clear strategy.

If winning becomes too important in a game， change the rules to make it more fun. Changing rules can become the new game.

"Die Vergangenheit ist nie tot, sie ist nicht einmal vergangen."

自知之明的人，不埋怨人；了解命运的人，不埋怨天；埋怨别人的人，遭遇穷困；埋怨上天的人，没有志向。

"Resilience is built through overcoming challenges."