expression
compassionate ruthlessness; merciless scalpel of a merciful surgeon
A yojijukugo describing an action that appears cruel or harsh but is motivated by deep compassion, like a surgeon's incision. Often used in contexts of tough love or necessary severity for a greater good.
彼の叱責は鬼手仏心だった。
His scolding was compassionate ruthlessness.
鬼手仏心の決断が求められる場面もある。
There are times when a decision of compassionate ruthlessness is required.
A yojijukugo combining 鬼手 (demon's hand) and 仏心 (Buddha's heart), literally 'a demon's hand and a Buddha's heart'. The exact origin is uncertain, but it encapsulates the Buddhist-influenced idea of harsh actions stemming from compassion.