tā / zài / zhǐ shàng / huà le / yí gè / jiǎn dān / de / tài jí tú / xiàng / xué shēng / jiě shì / zhé xué / sī xiǎng

他在纸上画了一个简单的太极图，向学生解释哲学思想。

He drew a simple yin-yang symbol on paper to explain philosophical ideas to his students.