释义:人才没有固定不变的价值,器物没有一成不变的用处。
Sun don't shine forever, but as long as it's here then we might as well shine together.
It is futile to demand an a priori proof of the existence of objects which are not immediately ‘given’.
解析:看到正义的事,却不能勇敢去做,这是懦夫的表现。