He strolled like a man in the park without a care or a worry in the world. Like he had>

成功不是幸福的关键，幸福才是成功的关键

The boundary between the quantum world and our everyday experience is not as sharp as we once thought.

世界充满了神奇的事物，耐心地等待着我们的感官变得更加敏锐。