Innovation is at the heart of what we do; it's how we will meet the dual challenge of providing affordable energy while reducing environmental impact.

The difference between theory and practice is that in theory, there is no difference between theory and practice, but in practice, there is.

最好的肥料是将农民的知识与自然的智慧相结合。

用心体会整理才能理解精确得当，所以应当沉着稳重，不然就成了口头耳边的小事，过后就忘了。事理要以典故为依据，因此必须学识广博，否则就成了随意推测，胡编乱造。