You can't change the past, but you can ruin the present by worrying about the future.

赏析：通过忘记脚、忘记腰、忘记是非纠纷来说明内心的舒适和自在，强调了要放下杂念和纷争，保持内心的平静。

Collaboration across departments leads to breakthroughs.

我不是潮流，我是偶像。