"Love all, trust a few" -- but whatever you do, don't believe men.
A new study reveals the Bard was not far off, though it suggests one sex is rather more reliable than the other.
According to the survey, the average male tells 1,092 lies every year -- roughly three a day.
And in so doing, he is less likely to suffer a guilty conscience than his female counterpart.
By contrast, the average woman will come out with 728 porkies per year -- fibbing twice a day.
And while men said their lies were most likely to relate to their drinking habits, the most popular female falsehood is: "Nothing's wrong, I'm fine".
According to the findings, people are most likely to spin a yarn to their mothers with 25pc of men and 20pc of women admitting to this.
By comparison, only 10pc of respondents said they were likely to deceive their partners.
But while 82pc of females questioned said telling a lie ate away at their conscience, only 70pc of men confessed to pangs of guilt.
Some 75pc agreed it was okay to fib to save someone's feelings.
Katie Maggs, associate medical curator at the Science Museum, which commissioned the study, said: "The jury is still out as to whether human quirks like lying are the result of our genes, evolution or our upbringing."
The study showed almost one fifth of people believe lie detection is acceptable to use in everyday life.
Ms Maggs said: "Whether we will soon be using accurate lie detectors in the home or at work is hard to say, but it won't be long before this technology is readily available."