ABSTRACT
Thus it is said that if you know others and yourself, you will not lose in every battle; if you do not know others but yourself, you win one and lose one; if you do not know others and do not know yourself, you will lose in every battle.
Thus it is said that if you know others and yourself, you will not lose in every battle; if you do not know others but yourself, you win one and lose one; if you do not know others and do not know yourself, you will lose in every battle.