This is:

I would like to refer again to my experience of studying physics. We physicists were constantly given theorems and their proofs — and inhumanly asked these proofs at the exam. I don’t need to know how an integral feature of Koshi is proven, I believe it. I am a physicist. It goes well, and thank God. No, please learn the proof.

In Germany then studied, solving tasks on electronics, the prede also records some integral and says that it is so disassembled, it is considered.
And why? I am asking.
“Go here, come to the window,” said the priest. I approach the window. 10th floor, view of the campus.
Do you see that green body? There are mathematicians. They prove this to us day and night.
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The Germans are not paid for it.
Many of us would be happy to explain. As they say, feel the difference.
Z is. Now a physicist without a solid knowledge of mathematics is worth a little.