The idea that a bell rings to signal when investors should get into or out of the market is simply not credible.
Markets are efficient enough that most investors will not outperform the market over the long term.
当亨利·福特制造出便宜、可靠的汽车时,人们说,'不,马有什么问题?'那是他做出的一个巨大的赌注,而且它成功了。