Lack of learning will inevitably lead to the stagnation of the mind, or even worse, its fossilization, Therefore, to stay mentally young, we have to take learning as a lifelong career.

• 缺少学习将不可避免地心灵的停滞，甚至更糟地，使其僵化。因此，保持心理年轻，必须将学习当作一生的事业。