throughthepracticeofelectricianaround,soImoredeeplyunderstandtheimportanceofpractice,throughpracticemoretounderstandthe"practicalknowledge"thetruthofthissentence,andfinallyrealizethe"arrogancebeforetheinternshipConfusion,afterthesenseofpractice,"themeaningofthissentence,andthereisasenseofthinkingthereisgain,thereisasenseofthinkingtoimprove.Theoryandpracticeareverydifferent,andmanythingsneedtothinkforthemselves,onlytopay,willget,thereisthinking,thereisagain,itmeanstoimprove,itincreasedthepracticalabilityandthinkingability.