Ben Sira 3:25

25 Without eyes thou shalt lack light; profess not the knowledge therefore that thou hast not.

Ben Sira 3:25 In-Context

23 Be not curious in unnecessary matters, for more things are shown unto thee than men understand.

24 For many are deceived by their own vain opinion, and an evil suspicion hath overthrown their judgment.

25 Without eyes thou shalt lack light; profess not the knowledge therefore that thou hast not.

26 A stubborn heart shall fare evilly at the last, and he that loveth danger shall perish therein.

27 An obstinate heart shall be laden with sorrows, and the wicked man shall heap sin upon sin.