Books
- Ludwig Hopf, Introduction to the Differential Equations of Physics. Translated by Walter Nef. New York: Dover Publications, 1948.
Read more about this topic: Ludwig Hopf
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“Good books do not make people wiser or happier—only more conscious.”
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“My books and instruments shall be my company,
On them to look and practise by myself.”
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“If only I could manage, without annoyance to my family, to get imprisoned for 10 years, “without hard labour,” and with the use of books and writing materials, it would be simply delightful!”
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