yere bakan yürek yakar

listen to the pronunciation of yere bakan yürek yakar
Türkçe - İngilizce
still waters run deep
A person with a calm appearance has, or may have, considerable inner emotion, character, or intellect

Isabel Pierce, the central character of Sweetwater, Roxana Robinson's fluid third novel, gives the appearance of being a thoughtful, reserved, quiet woman who won't rock any boats in her life. Yet she harbors passions; it might be said of her that still waters run deep.

achieve a task with tranquility and satisfaction; he who seems quiet and harmless but has the ability to harm deeply
yere bakan yürek yakar