The perfect antidote to this statement, is the statement by John Galt, the character of Ayn Rand’s novel “Atlas Shrugged,”

Do not say that you’re afraid to trust your mind because you know so little… Live and act within the limit of your knowledge and keep expanding it to the limit of your life… Accept the fact that you are not omniscient, but playing a zombie will not give you omniscience- that your mind is fallible- that an error made on your own is safer than ten truths accepted on faith, because the first leaves you the means to correct it, but the second destroys your capacity to distinguish truth from error