Logic is the hygiene the mathematician practices to keep his ideas healthy and strong.
Hermann WeylRead
Without the concepts, methods and results found and developed by previous generations right down to Greek antiquity one cannot understand either the aims or achievements of mathematics in the last 50 years. [Said in 1950]
Interpretation
Understanding mathematics requires knowledge of its historical development and foundational concepts.
Hermann Weyl emphasizes the importance of historical context in understanding contemporary mathematics. He argues that the achievements and aims of modern mathematics are deeply rooted in the concepts and methods established by earlier generations, including those from ancient Greece. Without this understanding, one cannot fully appreciate the significance of mathematical progress made in the past 50 years.
In practice
In a lecture on mathematical philosophy, one might use this quote to emphasize the importance of historical knowledge.
Logic is the hygiene the mathematician practices to keep his ideas healthy and strong.
We are not very pleased when we are forced to accept a mathematical truth by virtue of a complicated chain of formal conclusions and computations, which we traverse blindly, link by link, feeling our way by touch. We want first an overview of the aim and of the road; we want to understand the idea of the proof, the deeper context.
Besides language and music, mathematics is one of the primary manifestations of the free creative power of the human mind.
You can not apply mathematics as long as words still becloud reality.
Besides language and music, it [mathematics] is one of the primary manifestations of the free creative power of the human mind, and it is the universal organ for world understanding through theoretical construction. Mathematics must therefore remain an essential element of the knowledge and abilities which we have to teach, of the culture we have to transmit, to the next generation.
Symmetry, as wide or as narrow as you may define its meaning, is one idea by which man through the ages has tried to comprehend and create order, beauty and perfection.
Tuesday—we had school for the first time. Madame O’Malley had a moment of silence at the beginning of French class, a class that was always punctuated with long moments of silence, and then asked us how we were feeling. “Awful,” a girl said. “En français,” Madame O’Malley replied. “En français.
For some years now I have read through the Bible twice every year. If you picture the Bible to be a mighty tree and every word a little branch, I have shaken every one of these branches because I wanted to know what it was and what it meant.
To handle a language skillfully is to practice a kind of evocative sorcery.
People who love ideas must have a love of words. They will take a vivid interest in the clothes that words wear.
The 3-legged stool of understanding is held up by history, languages, and mathematics. Equipped with those three you can learn anything you want to learn. But if you lack any one of them you are just another ignorant peasant with dung on your boots.
To teach details is to bring confusion; to establish the relationship between things is to bring knowledge.
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