It was only later that I came to gradually realize the centrality of "self understanding" to those trying to kick the drug habit: It is necessary to know oneself before one can change oneself, and if you want to avoid repeating the same mistakes it is necessary to know your weaknesses.
後來我漸漸瞭解「認清自己」對戒毒人的重要，改變自己前得先認識自己；要預防自己再跌倒，得先知道自己哪裡軟弱。