Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing. ...

A scientist who cannot prove what he has accomplished, has accomplished nothing. (Walter Reisch)

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Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.

Walter Reisch Quotes: A scientist who cannot prove what he has accomplished, has accomplished nothing.