The progress of science is not a straight line, but a series of zigzags, often retracing steps to gain a better foothold.
科学的进步不是一条直线，而是一系列曲折，常常需要回溯步骤以获得更好的立足点。
Literature is the bridge between the visible and the invisible, the spoken and the unspoken.
I don't let the world change my smile.
People don't buy what you do; they buy why you do it.
The laws of physics are universal, but our understanding of them is constantly evolving.