But none of these scars were fresh. They were as old as erosions[侵蚀] in a fishless desert. Everything about him was old except his eyes, and they were the same color as the sea and were cheerful and undefeated.
但是这些伤疤中没有一块是新的。它们像无鱼可打的沙漠中被侵蚀的地方一般古老。他身上的一切都显得古老，除了那双眼睛，它们像海水一般蓝，是愉快而不肯认输的。
最好的肥料是农民在田间的身影。
效率和道德必须齐头并进；没有另一方，任何一方都无法蓬勃发展。
拓扑绝缘体的美在于它们的鲁棒性；它们的表面态受到对称性和拓扑的保护，使它们对某些类型的无序免疫。
我不会让世界偷走我的快乐。
挑战让我们成长；用勇气和决心去迎接它们。