heart is won by heart
A proverb meaning that one's sincere spirit or passion moves others; true feeling resonates with true feeling. Often used to express that genuine emotion or enthusiasm can win people over.
Moved by his enthusiasm, everyone cooperated. Truly, heart is won by heart.
A classical Japanese proverb derived from Chinese literature, emphasizing the power of sincere feeling. The exact historical derivation is uncertain, but it has been used in Japanese for centuries to express that genuine emotion moves others.