failure is a stepping stone to success

failure leads to success

past tense and perfective aspect of 転じる (tenjiru) [godan]

change

failure, miscarriage / mistake, fault, error

fail / make a mistake

success / success in life, achievement in the world

succeed / be successful in life

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend