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.

自由是创造力的氧气；没有它，艺术就会窒息。

You have to grind when no one else is grinding so you can shine when no one else is shining.

——晚年访谈

Physics is not just about finding answers, it's about asking the right questions.