高人一等[gāo rén yī děng] 基本解释：

a cut above others

a notch above others

新英汉大词典：

高人一等  [gāo rén yì děng]

• • - regard oneself head and shoulders above others; be a cut above others [most people]; be a head taller than ...; be a notch above [higher than] others; be superior to ordinary people; tower above the rest