It's not easy
As a Chinese idiom, Pinyin is d é Q í s ā nm è I, which is interpreted as having profound attainments in a certain field and being familiar with the essence. From another gift to Lao Qian.
The origin of Idioms
Su Shi's another gift to Lao Qian in Song Dynasty said: "the old tea is the samadhi of Xietang."
Idiom usage
He is very talented and can't be very proficient. How to learn what you can master is still a matter of advice. The 17th chapter of Jing Hua Yuan by Li Ruzhen in Qing Dynasty
It's not easy
A good teacher makes a good student - míng shī chū gāo tú
a pleasant day coupled with a fine landscape - liáng chén mèi jǐng