Preferrably something that has had a notable impact on your life.
SPOT ON"Trading is about managing risk
"Trading is about managing risk, not about maximizing profit: your primary responsibility when you sit down at 9.00 this morning to start trading is to be able to sit down again at 9.00 tomorrow morning to start trading."
(And one more: "Buy the dips in an uptrend and sell the peaks in a downtrend" has also been pretty good to me, and is what several of my methods boil down to.)