trading nuggets

few nuggets i read today (i loved the last one) :
1.The most difficult task in speculation is not prediction but self-control. Successful trading is difficult and frustrating. You are the most important element in the equation for success.
2.The key to successful trading is knowing yourself and your stress point.
3.The difference between winners and losers isn’t so much native ability as it is discipline exercised in avoiding mistakes.
4.Of all speculative blunders, there are few greater than selling what shows a profit and keeping what shows a loss.
5.Standing aside is a position.
6. Lose your opinion – not your money.
7. When the ship starts to sink, don’t pray – jump!