zhǐ yǒu / kè kǔ nài láo / de / rén / cái néng / zài / zhè ge / xíng yè / qǔ dé / chéng gōng

只有刻苦耐劳的人，才能在这个行业取得成功。

Only those who are industrious and able to withstand hardship can succeed in this industry.