From that you find a relationship between that idea and another idea. You continue doing this path until you get back where you started or reach a dead end.

基本上这得从你有的知识概念中开始，从里面找出蛛丝马迹，然后追根溯源，直到你回到原点或者卡壳了！

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As long as it is direction is right, not a dead end, as long as you stick to it, he will reach the other side of the light.

只要是大方向是对的，不是死胡同，你只要坚持下去，他会达到光明的彼岸的。——袁隆平。

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But women predominate in the lower-paying, menial, unrewarding, dead-end jobs, and when they do reach better positions, they are invariably paid less than a man for the same job.

妇女主要从事工资低、伺候人、没有前途的工作。即使她们获得较好的职位，他们的工资也总是比同样工作的男人低。

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If you reach a dead end, or do not have the time or inclination to keep looking yourself, there are companies like Ancestral Footsteps.

BBC: A trip back to your roots