The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
The world is a book, and those who do not travel read only one page.
拓扑量子计算的发展可能会导致更健壮的量子系统。
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.