It can be very hard to see the everyday chemistry at work, but nearly everything you touch has some chemicals in it.

我们可能很难看到日常的化学作用，但几乎你接触的所有东西都有一些化学物质。

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Over these years, one conclusion has become increasingly clear: the more hard focus you dedicate to a technical subject - be it computer science, chemistry, or physics - the better you get.

过去的这些年，有个结论越来越清晰，即你在技术学科如计算机科学、化学或物理方面研究的越多，你将得到的也越多。

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Paul Crutzen, winner of the Nobel Prize in chemistry, finds it hard to believe. "it's incredible to see what a single word changes," he says.

诺贝尔化学奖获得者保罗·克鲁岑表示这真是令人难以置信。

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He would try to explain it this way when students asked for a top grade just for studying hard in chemistry class: What if a baseball player came to spring training and worked harder than all the others, but still could not play well.

VOA: special.2009.03.12

Dr Djerassi credits the Pill with pushing him beyond the hard edges of chemistry to consider the softer (ie, social and ethical) dimensions of new technology.

ECONOMIST: LAST WORD: Godfather of the Pill | The

"For example, one of the very hard things about teaching chemistry is explaining that molecules have shape, " King said.

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This made the chemistry so hard that some firms gave up.

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