释义：生前费尽心思追求各种东西，死后却只能留下一双空手。人生的悲欢离合每天都在上演，寿命的长短和命运的通达与否每天都在变化。
The Milky Way’s black hole is our closest laboratory for studying extreme gravity.
幸福和不幸取决于我们对事物的看法。
Climate change is the ultimate test of our agricultural ingenuity.
"Every discovery in science is a step closer to understanding our place in the cosmos."
The market is a reflection of the economic cycle.
Psychology should illuminate the practical workings of the mind, not just dissect its parts.