物理学的美丽在于它能够用简单的原理解释宇宙的复杂性。
The beauty of physics lies in its ability to explain the complexities of the universe with simple principles.
The evening is the time of day I like best. I love the transition from day to night, the way the light changes, the way the air feels.
Social progress can be measured by the social position of the female sex.
Children have real understanding only of that which they invent themselves, and each time that we try to teach them something too quickly, we keep them from reinventing it themselves.
