剛ごう柔じゅう

noun, noun which may take the genitive case particle 'no'

hardness and softness; strength and flexibility

Refers to the combination or balance of hardness and softness, often used in martial arts, philosophy, or describing a person's character.

• 彼かれの指し導どう法ほうは剛ごう柔じゅうを兼かね備そなえている。

  His teaching method combines firmness and gentleness.

• 柔じゅう道どうでは剛ごう柔じゅうのバランスが大たい切せつだ。

  In judo, the balance between hardness and softness is important.