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The best colleagues are those who will think about your ideas, who will talk with you and offer insight, constructive criticism. No one needs to be crushed for having a new idea.
--
"Creativity in Science and Engineering", Martin Perl's blog Reflections on Physics ... from the Tau to Dark Energy

 

Martin Lewis Perl

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When I speak of reason or rationalism, all I mean is the conviction that we can learn through criticism of our mistakes and errors, especially through criticism by others, and eventually also through self-criticism. A rationalist is simply someone for whom it is more important to learn than to be proved right; someone who is willing to learn from others — not by simply taking over another's opinions, but by gladly allowing others to criticize his ideas and by gladly criticizing the ideas of others. The emphasis here is on the idea of criticism or, to be more precise, critical discussion. The genuine rationalist does not think that he or anyone else is in possession of the truth; nor does he think that mere criticism as such helps us achieve new ideas. But he does think that, in the sphere of ideas, only critical discussion can help us sort the wheat from the chaff. He is well aware that acceptance or rejection of an idea is never a purely rational matter; but he thinks that only critical discussion can give us the maturity to see an idea from more and more sides and to make a correct judgement of it.

 

Karl Popper

 

Upon the low value of "constructive" criticism I can offer testimony out of my own experience. My books have been commonly reviewed at length, and many critics have devoted themselves to pointing out what they conceive to be my errors, both of fact and of taste. Well, I cannot recall a case in which any suggestion offered by a "constructive" critic has helped me in the slightest, or even actively interested me. Every such wet-nurse of letters has sought fatuously to make me write in a way differing from that in which the Lord God Almighty, in His infinite wisdom, impels me to write — that is, to make me write stuff which, coming from me, would be as false as an appearance of decency in a Congressman. All the benefits I have ever got from the critics of my work have come from the destructive variety. A hearty slating always does me good, particularly if it be well written. It begins by enlisting my professional respect; it ends by making me examine my ideas coldly in the privacy of my chamber. Not, of course, that I usually revise them, but I at least examine them. If I decide to hold fast to them, they are all the dearer to me thereafter, and I expound them with a new passion and plausibility. If, on the contrary, I discern holes in them, I shelve them in a pianissimo manner, and set about hatching new ones to take their place. But "constructive" criticism irritates me. I do not object to being denounced, but I can't abide being schoolmastered, especially by men I regard as imbeciles.

 

H. L. Mencken

 

It is astonishingly beautiful and interesting, how thought is absent when you have an insight. Thought cannot have an insight. It is only when the mind is not operating mechanically in the structure of thought that you have an insight. Having had an insight, thought draws a conclusion from that insight. And then thought acts and thought is mechanical. So I have to find out whether having an insight into myself, which means into the world, and not drawing a conclusion from it is possible. If I draw a conclusion, I act on an idea, on an image, on a symbol, which is the structure of thought, and so I am constantly preventing myself from having insight, from understanding things as they are.

 

Jiddu Krishnamurti

 

War is destructive. The idea that you can do something constructive with war is becoming this facile, dangerous, intellectually lax political interpretation of military counter-insurgency theory. I want to hear [President Barack Obama] say that doesn't work. That war is never constructive.

 

Rachel Maddow

 

There is only one Art, whose sole criterion is the power, the authenticity, the revelatory insight, the courage and suggestiveness with which it seeks its truth. ... Thus, from the standpoint of the work and its worth it is irrelevant to which political ideas the artist as a citizen claims allegiance, which ideas he would like to serve with his work or whether he holds any such ideas at all.

 

Vaclav Havel