但是，科学方法的确使许多人前进的步伐更有把握。

But scientific method does enable large Numbers to walk with surer steps.

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收成视天气而定，使农业没有把握。

The dependence of the crops on the weather makes farming very uncertain .

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因此，我们可以十分有把握地得出结论说，正是人类勇于求索的心灵及其满怀理想的赋性才使人类有别于其他动物。

Consequently we can safely conclude that it is precisely man's inquiring mind and his aspiring nature that distinguish himself from other animals.

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