The biggest mistake you can make is doing nothing because you "re too scared to make a mistake."

你会犯的最大的错误就是你害怕失败还什么都不去做。

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"If you're not doing anything wrong, you have nothing to be worried about, " said Joseph Clarke, 32, a London banker.

WSJ: Bombing probe highlights expansion of surveillance

And that's why, in some sense, it sounds so counterintuitive that it's sometimes sloth and just standing there and doing nothing will give you a better performance than trying to think you're so smart and you can get in and out at the right time because you don't get in and out at the right time.

FORBES: Intelligent Investing Briefing Book