不断学习使人常保年轻。
Anyone who keeps learning stays young.
Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.
学び続ける者はいつまでも若い。
原文是“任何人停止学习就会变老，而不管他是20岁还是80岁。不断学习使人常保年轻。人生中最重要的是要保持思想年轻。”
