Behavior, as such, is not to be regarded as a mere chain of muscular contractions, but rather as a purposive and cognitive affair.
The best way of learning about anything is by doing.
I don't like to gamble, but if there's one thing I'm willing to bet on, it's myself.
当市场下跌时,你轻易的将好东西打折变卖,但是一旦市场向上,再想买回来,难之又难。