# 費曼：科學看見美麗

I have a friend who’s an artist and has sometimes taken a view which I don’t agree with very well. He’ll hold up a flower and say “look how beautiful it is,” and I’ll agree. Then he says “I as an artist can see how beautiful this is but you as a scientist take this all apart and it becomes a dull thing,” and I think that he’s kind of nutty. First of all, the beauty that he sees is available to other people and to me too, I believe…

I can appreciate the beauty of a flower. At the same time, I see much more about the flower than he sees. I could imagine the cells in there, the complicated actions inside, which also have a beauty. I mean it’s not just beauty at this dimension, at one centimeter; there’s also beauty at smaller dimensions, the inner structure, also the processes. The fact that the colors in the flower evolved in order to attract insects to pollinate it is interesting; it means that insects can see the color. It adds a question: does this aesthetic sense also exist in the lower forms? Why is it aesthetic? All kinds of interesting questions which the science knowledge only adds to the excitement, the mystery and the awe of a flower. It only adds. I don’t understand how it subtracts.

# Pi 是永恆 (二)

$p \le C \le P$

$2nb \le C \le 2nB$

$2nR\sin[360/(2n)] \le C \le 2nR\tan[360/(2n)]$

$n\sin(180/n) \le C/(2R) \le n\tan(180/n)$

$\lim_{n\to\infty} n\sin(180/n) \le C/(2R) \le \lim_{n\to\infty} n\tan(180/n)$

$\lim_{n\to\infty} n\sin(180/n) = \lim_{n\to\infty} 180 \times \sin(180/n)/(180/n)$

$\lim_{n\to\infty} n\tan(180/n) = \lim_{n\to\infty} 180 \times \tan(180/n)/(180/n)$

$180 \le C/(2R) \le 180$

$\pi = C/(2R) = 180$ 度，

$\pi$是永恆。

Pi 是永恆 (一)》- 余海峯

# 費曼誕辰：談科學精神、機率和不確定性

It is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible.

We have found it of paramount importance that in order to progress we must recognize our ignorance and leave room for doubt. Scientific knowledge is a body of statements of varying degrees of certainty – some most unsure, some nearly sure, but none absolutely certain.

There’s a kind of saying that you don’t understand its meaning, ‘I don’t believe it. It’s too crazy. I’m not going to accept it.’… You’ll have to accept it. It’s the way nature works. If you want to know how nature works, we looked at it, carefully. Looking at it, that’s the way it looks. You don’t like it? Go somewhere else, to another universe where the rules are simpler, philosophically more pleasing, more psychologically easy. I can’t help it, okay? If I’m going to tell you honestly what the world looks like to the human beings who have struggled as hard as they can to understand it, I can only tell you what it looks like.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

「如果要我誠實的告訴你，在盡力掙扎理解的人們眼中世界是如何運作的，我只能告訴你：它就是如此。」若我們都能銘記費曼這句說話，可能就是對他來說最好的生日禮物。