aptitude多指先天或后天习得的运用自如的能力，常暗示接受能力强，能迅速掌握一种学术训练或艺术技巧。

Even as a child he showed an unusual aptitude for mathematics.甚至孩童时他就显露出非同一般的数学才能。faculty指特殊的才能或智力。 He has a great faculty for mathematics.他具有很强的学数学的才能。He has a faculty for painting.他擅长绘画。