敵を知り己を知らば百戦危うからず
てきをしりおのをしらばひゃくせんあやうからず
know your enemy, know thyself, and you shall not fear a hundred battles
敵を知り己を知れば百戦危うからず is read as てきをしりおのをしればひゃくせんあやうからず (teki o shiriono o shirebahyakusenayaukarazu) and means know your enemy, know thyself, and you shall not fear a hundred battles.
てきをしりおのをしればひゃくせんあやうからず
teki o shiriono o shirebahyakusenayaukarazu
てきをしりおのをしらばひゃくせんあやうからず
know your enemy, know thyself, and you shall not fear a hundred battles
かれをしりおのれをしればひゃくせんあやうからず
if you know your enemy and know yourself, in a hundred battles you will never be defeated