Literature Reference: 此心知止足，何物要经营。—— 《江州赴忠州至江陵已来舟中示舍弟五十韵》 This heart knows contentment, what else is there to pursue? - From 'Fifty Rhymes to My Younger Brother on the Journey from Jiangzhou to Zhongzhou' by Bai Juyi.
止: Surname, standing still.
足: Foot. It holds no actual significance in a name.
Meaning: Knowing contentment embodies a tranquil and unpretentious attitude towards life.