自我不是坚固的事物,而是回声的集合。
The self is not a solid thing but a collection of echoes.
The past is not a foreign country; it is our own.
The past is always with us, for it feeds the present.
物理学的美丽在于它能够揭示宇宙表面复杂性之下的深刻简单性。
宇宙即变化;我们的生活由我们的思想塑造。
Technology ultimately serves people, not the other way around.