Source: Ludwig von Bertalanffy (1901-1972) (1989), p. 2
“The real point of honor [for a scientist] is not to be always right. It is to dare to propose new ideas, and then to check them.”
Le vrai point d'honneur [d'un scientifique] n'est pas d'être toujours dans le vrai. Il est d'oser, de proposer des idées neuves, et ensuite de les vérifier.
As quoted in La Science des Rêves, Science et Vie Junior, 214, (18 May 2007), p. 13
Original
Le vrai point d'honneur [d'un scientifique] n'est pas d'être toujours dans le vrai. Il est d'oser, de proposer des idées neuves, et ensuite de les vérifier.
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Pierre-Gilles de Gennes 5
French Physicist 1932–2007Related quotes

The Art of Propagating Opinion
The Note-Books of Samuel Butler (1912), Part X - The Position of a HomoUnius Libri

We can't hide in our labs and leave the talking to Dawkins http://www.guardian.co.uk/commentisfree/2008/nov/25/comment-science-secularism-society-dawkins, The Guardian, Tuesday 25 November 2008.

Inner Space http://www.poetrysoup.com/famous/poem/21400/Inner_Space
From the poems written in English

“You both should feel honored.”
“Right, very honored,” I said. “Always wanted to be possessed!”
Source: The Red Pyramid

The Art of Propagating Opinion
The Note-Books of Samuel Butler (1912), Part X - The Position of a HomoUnius Libri
Context: Ideas and opinions, like living organisms, have a normal rate of growth which cannot be either checked or forced beyond a certain point. They can be held in check more safely than they can be hurried. They can also be killed; and one of the surest ways to kill them is to try to hurry them.

quoted by [Pierre Marage, Grégoire Wallenborn, The Solvay Councils and the Birth of Modern Physics, Birkhäuser Verlag, 1999, 3-764-35705-3]

Physics and Beyond : Encounters and Conversation (1971)

Speech before Congress (April 4, 1917), Congressional Record—Senate, April 4, 1917, 224–225.
Context: Mr. President, I had supposed until recently that it was the duty of senators and representatives in Congress to vote and act according to their convictions on all public matters that came before them for consideration and decision. Quite another doctrine has recently been promulgated by certain newspapers, which unfortunately seems to have found considerable support elsewhere, and that is the doctrine of “standing back of the President” without inquiring whether the President is right or wrong.
For myself, I have never subscribed to that doctrine and never shall. I shall support the President in the measures he proposes when I believe them to be right. I shall oppose measures proposed by the President when I believe them to be wrong.