I don't entirely agree with this statement. I'm not smart. I can improve my IQ in various ways. It is better to stop boiling than to cure it. Sharpen a knife and cut wood by mistake. If you work hard, get up early and get greedy for the dark, you will easily get tired and overdraw your body, which will not pay off.
Edison said, "Genius is 99% diligence plus 1% inspiration". You know, Edison went on to say that China people didn't translate, which means "and this 1% inspiration is the most important". But this wrong theory has affected generations. Inspiration is the function of the right brain. I think modern education should pay more attention to the education of right brain, cultivate and develop people's brain thinking, and cultivate more talents. Only by hard work and proficiency can we get twice the result with half the effort. There is a road to learning mountains, but there is no limit to learning the sea.
Human life is limited, but knowledge is infinite. Stupid birds fly first and enter the forest early, which can only explain one aspect of the problem-attitude. And ignore another problem-method. The most valuable knowledge is the knowledge of methods, which is easily overlooked.