And once we build renewable infrastructure, the actual energy from the sun and wind is free.

一旦我们建立了可再生基础设施，来自太阳能和风能的实际能源就是免费的。

I cannot repeat too often the fact that I speak of the actual energy content of idea, as separate and additional to the energy obviously utilized in transforming idea from the psychological to the physical field.

我要不厌其烦地强调我说的这个事实：理念的实际能量内含，与明显用在将理念从心理场域转化为物质场域的能量是分开的，是额外的。