translation.en: We all know, if you've ever taken a finance course, the first thing you're taught is sort of the risk-reward relationship, and so some people are foolish enough or probably smart enough if they have time to wait, to actually invest in stocks, because they're higher risk which over time will make a greater reward than bonds, that whole risk-reward thing.
translation.zh: 如果你学过金融课，你会知道 你学到的第一课就大概是风险与回报的关系， 因此有些人愚蠢至极 或者说聪明至极，他们把时间花在 投资股票上，因为股票的风险高 所以随之而来的回报也自然高。 这就是所说的风险回报的关系。