to know ones own limitations

from The Collaborative International Dictionary of English v.0.48
Limitation \Lim`i*ta"tion\ (-t[=a]"sh[u^]n), n. [L. limitatio:
   cf. F. limitation. See {Limit}, v. t.]
   1. The act of limiting; the state or condition of being
      limited; as, the limitation of his authority was approved
      by the council.
      [1913 Webster]

            They had no right to mistake the limitation . . . of
            their own faculties, for an inherent limitation of
            the possible modes of existence in the universe.
                                                  --J. S. Mill.
      [1913 Webster]

   2. That which limits; a restriction; a qualification; a
      restraining condition, defining circumstance, or
      qualifying conception; as, limitations of thought.
      [1913 Webster]

            The cause of error is ignorance what restraints and
            limitations all principles have in regard of the
            matter whereunto they are applicable. --Hooker.
      [1913 Webster]

   3. A certain precinct within which friars were allowed to
      beg, or exercise their functions; also, the time during
      which they were permitted to exercise their functions in
      such a district. --Chaucer. Latimer.
      [1913 Webster]

   4. A limited time within or during which something is to be
      done.
      [1913 Webster]

            You have stood your limitation, and the tribunes
            Endue you with the people's voice.    --Shak.
      [1913 Webster]

   5. (Law)
      (a) A certain period limited by statute after which the
          claimant shall not enforce his claims by suit.
      (b) A settling of an estate or property by specific rules.
      (c) A restriction of power; as, a constitutional
          limitation. --Wharton. Bouvier.
          [1913 Webster]

   {To know one's own limitations}, to know the reach and limits
      of one's abilities. --A. R. Wallace.
      [1913 Webster]
    

[email protected]