但是迷信行为不仅在人类社会可见，动物也有。
Yet superstitious behavior can be recognized in many animals, not just humans.
迷信行为也不是免费的——种种仪式和避讳都有成本。
Superstitions are not free - there are rituals and avoidances cost.
通过选择交食（日食与月食的统称）作为研究对象，Mr Lepori优雅的绕过了证明迷信行为在股票市场上产生效应的两大障碍。
By choosing to study eclipses, Mr Lepori has neatly avoided the two largest obstacles to proving the effects of superstitious behaviour on stockmarkets.
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