The human brain is a product of evolution, and so is the human mind.
I am not a political person by nature. I don't think writers should be political persons. But in South Africa, you can't keep politics out of your life.
锄地不因为旱涝灾害而停止,这样一定会得到一个丰收的年景。如果不勤劳耕作、不掌握正确的耕种方法,那怎么可能获得丰收呢?所以,我们凡事应该先从自己身上找原因,重视自己的主观能动性。