It is difficult to become an expert in two different fields or master two distinct skills simultaneously; one should focus on one area to achieve true proficiency.
他深知能不两工的道理，因此在职业生涯中始终专注于一个领域，最终取得了卓越成就。
He deeply understood the principle that one cannot master two crafts, so he consistently focused on one field throughout his career and ultimately achieved outstanding success.
Era:
Ancient
Frequency:
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