Here we have the infallible kind of Sign, the only kind that constitutes a complete proof, since it is the only kind that, if the particular statement is true, is irrefutable.

这样我们就有了绝对可靠的迹象，唯一构成完全论据的那种，因为只有这种迹象在陈述为真时不会被驳倒。

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The infallible traders of the first quarter turned out to be no better than the average investor at making a profit in a volatile and unpredictable market.

第一季度那些绝对正确的交易员在反复无常、难以预料的市场环境中盈利状况并不比一般投资者好。

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Conscience gives me a joyous mind, and learns, sire, that the infallible recipe for happiness-a good conscience-you are in want of.

陛下您要懂得，拥有快乐的秘诀是要拥有善良的心灵——而您却没有。

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The challenge is ensuring that the board does not see this individual as infallible or as a secretary.

FORBES: Building Successful Non-Profit Boards

However, Reyes is not infallible and his warts as a ballplayer are just as prominent as his speed and exuberance.

FORBES: $106 Million Reasons Why Sandy Alderson Is Happy Today

They aren't always infallible, though, and a few weeks ago, we saw a vulnerability in several builds of iOS 6 that granted access to the phone module without a passcode.

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