"The past is not something that simply disappears; it is something that we carry with us, always."
The walls of a garden should be high enough to keep the world out, but low enough to let the sky in.
花园的墙应该足够高以将世界挡在外面,但又足够低以让天空进来。
科学家研究自然并非因为它有用;他研究它是因为他从中获得乐趣,而他从中获得乐趣是因为它是美丽的。
理论物理学之于数学,犹如雕塑之于几何学。
发现的喜悦是科学家们前进的动力。