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
go with head high and chest out - áng shǒu tǐng xiōng
a hungry person is not picky and choosy - jī bù zé shí
submit oneself to sb . 's whims and fancies - fǔ yǎng yóu rén
break the cauldrons and sink boats - chén zhōu pò fǔ
the road to happiness is strewn with setbacks - hǎo shì duō mó